diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..1b57473
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,91 @@
+version: 2.1
+orbs:
+  node: circleci/node@5
+
+aliases:
+  - &release-branches
+    - master
+    - develop
+    - /^hotfix\//
+
+executors:
+  default-executor:
+    docker:
+      - image: cimg/node:16.18.1 # Consider switching to LTS when scratch-audio supports that version
+    working_directory: ~/project
+    resource_class: medium
+
+commands:
+  test:
+    steps:
+      - run:
+          name: Test
+          command: npm run test
+  setup_deploy:
+    steps:
+      - run:
+          name: Setup Deploy
+          command: |
+            export NODE_ENV=production
+            export RELEASE_TIMESTAMP=$(date +'%Y%m%d%H%M%S')
+            echo "export NPM_TAG=latest" >> $BASH_ENV
+            npm run build
+            if [ -z "$BEFORE_DEPLOY_RAN" ]; then
+                VPKG=$($(npm bin)/json -f package.json version)
+                VERSION=${VPKG}-prerelease.${RELEASE_TIMESTAMP}
+                echo "export RELEASE_VERSION=${VPKG}-prerelease.${RELEASE_TIMESTAMP}" >> $BASH_ENV
+                npm --no-git-tag-version version $VERSION
+                if [[ "$CIRCLE_BRANCH" == hotfix/* ]]; then # double brackets are important for matching the wildcard
+                    echo "export NPM_TAG=hotfix" >> $BASH_ENV
+                fi
+                git config --global user.email "$(git log --pretty=format:"%ae" -n1)"
+                git config --global user.name "$(git log --pretty=format:"%an" -n1)"
+                echo "export BEFORE_DEPLOY_RAN=true" >> $BASH_ENV
+            fi
+  deploy:
+    steps:
+      - run:
+          name: Deploy
+          command: |
+            echo "Deploying version $RELEASE_VERSION to $NPM_TAG"
+            npm set //registry.npmjs.org/:_authToken=$NPM_TOKEN
+            npm publish --tag $NPM_TAG
+            if npm info | grep -q $RELEASE_VERSION; then git tag $RELEASE_VERSION && git push https://${GH_TOKEN}@github.com/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}.git $RELEASE_VERSION; fi
+
+jobs:
+  build-and-test:
+    executor: default-executor
+    steps:
+      - checkout
+      - node/install-packages
+      - test
+      - persist_to_workspace:
+          root: ~/project
+          paths:
+            - .
+  deploy:
+    executor: default-executor
+    steps:
+      - attach_workspace:
+          at: ~/project
+      - setup_deploy
+      - deploy
+
+workflows:
+  build-and-test-workflow:
+    jobs:
+      - build-and-test:
+          filters:
+            branches:
+              ignore: *release-branches
+  deploy-workflow:
+    jobs:
+      - build-and-test:
+          filters:
+            branches:
+              only: *release-branches
+      - deploy:
+          context:
+            - scratch-npm-creds
+          requires:
+            - build-and-test
diff --git a/.npmignore b/.npmignore
index 2e7f9c3..2a09552 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,3 +1,6 @@
+# Development files
+/.circleci
+
 # Testing
 /.nyc_output
 /coverage
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index a68c812..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-language: node_js
-node_js:
-- 8
-- node
-env:
-  matrix:
-  - NPM_SCRIPT="tap -- --jobs=4"
-cache:
-  directories:
-  - node_modules
-script: npm run $NPM_SCRIPT
-jobs:
-  include:
-  - env: NPM_SCRIPT=build
-    node_js: 8
-    if: not (branch in (master, develop) and type != pull_request)
-  - env: NPM_SCRIPT=lint
-    node_js: 8
-  - stage: release
-    node_js: 8
-    env: NPM_SCRIPT=build
-    before_deploy:
-    - npm --no-git-tag-version version 0.1.0-prerelease.$(date +%Y%m%d%H%M%S)
-    deploy:
-    - provider: npm
-      on:
-        all_branches: true
-      skip_cleanup: true
-      email: $NPM_EMAIL
-      api_key: $NPM_TOKEN
-stages:
-- test
-- name: release
-  if: branch in (master, develop) and type != pull_request
diff --git a/README.md b/README.md
index b5921b6..f4922be 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 
 #### Please note this project is at an early stage and we are not ready for pull requests
 
-[![Build Status](https://travis-ci.org/LLK/scratch-audio.svg?branch=develop)](https://travis-ci.org/LLK/scratch-audio)
+[![CircleCI](https://circleci.com/gh/LLK/scratch-audio/tree/develop.svg?style=shield&circle-token=3792f4f51158c8c9b448527466ffe302b0c6f0f5)](https://circleci.com/gh/LLK/scratch-audio?branch=develop)
 
 ## Installation
 This requires you to have Git and Node.js installed.
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..b4144d7
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,14801 @@
+{
+  "name": "scratch-audio",
+  "version": "0.1.0",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "scratch-audio",
+      "version": "0.1.0",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "audio-context": "1.0.1",
+        "minilog": "^3.0.1",
+        "startaudiocontext": "1.2.1"
+      },
+      "devDependencies": {
+        "babel-core": "6.26.3",
+        "babel-eslint": "7.2.3",
+        "babel-loader": "7.1.5",
+        "babel-preset-env": "1.7.0",
+        "eslint": "3.19.0",
+        "eslint-config-scratch": "3.1.0",
+        "json": "9.0.6",
+        "tap": "12.7.0",
+        "web-audio-test-api": "0.5.2",
+        "webpack": "4.46.0",
+        "webpack-cli": "3.3.12"
+      }
+    },
+    "node_modules/@babel/code-frame": {
+      "version": "7.18.6",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/highlight": "^7.18.6"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/generator": {
+      "version": "7.20.4",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/types": "^7.20.2",
+        "@jridgewell/gen-mapping": "^0.3.2",
+        "jsesc": "^2.5.1"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/generator/node_modules/jsesc": {
+      "version": "2.5.2",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "jsesc": "bin/jsesc"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/helper-environment-visitor": {
+      "version": "7.18.9",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-function-name": {
+      "version": "7.19.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/template": "^7.18.10",
+        "@babel/types": "^7.19.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-hoist-variables": {
+      "version": "7.18.6",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/types": "^7.18.6"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-split-export-declaration": {
+      "version": "7.18.6",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/types": "^7.18.6"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-string-parser": {
+      "version": "7.19.4",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/helper-validator-identifier": {
+      "version": "7.19.1",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/highlight": {
+      "version": "7.18.6",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-validator-identifier": "^7.18.6",
+        "chalk": "^2.0.0",
+        "js-tokens": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/ansi-styles": {
+      "version": "3.2.1",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "color-convert": "^1.9.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/chalk": {
+      "version": "2.4.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^3.2.1",
+        "escape-string-regexp": "^1.0.5",
+        "supports-color": "^5.3.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/highlight/node_modules/js-tokens": {
+      "version": "4.0.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@babel/highlight/node_modules/supports-color": {
+      "version": "5.5.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "has-flag": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/parser": {
+      "version": "7.20.3",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "parser": "bin/babel-parser.js"
+      },
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
+    "node_modules/@babel/template": {
+      "version": "7.18.10",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/code-frame": "^7.18.6",
+        "@babel/parser": "^7.18.10",
+        "@babel/types": "^7.18.10"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/traverse": {
+      "version": "7.20.1",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/code-frame": "^7.18.6",
+        "@babel/generator": "^7.20.1",
+        "@babel/helper-environment-visitor": "^7.18.9",
+        "@babel/helper-function-name": "^7.19.0",
+        "@babel/helper-hoist-variables": "^7.18.6",
+        "@babel/helper-split-export-declaration": "^7.18.6",
+        "@babel/parser": "^7.20.1",
+        "@babel/types": "^7.20.0",
+        "debug": "^4.1.0",
+        "globals": "^11.1.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/traverse/node_modules/debug": {
+      "version": "4.3.4",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ms": "2.1.2"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@babel/traverse/node_modules/globals": {
+      "version": "11.12.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@babel/traverse/node_modules/ms": {
+      "version": "2.1.2",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@babel/types": {
+      "version": "7.20.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/helper-string-parser": "^7.19.4",
+        "@babel/helper-validator-identifier": "^7.19.1",
+        "to-fast-properties": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
+    "node_modules/@babel/types/node_modules/to-fast-properties": {
+      "version": "2.0.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/@jridgewell/gen-mapping": {
+      "version": "0.3.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/set-array": "^1.0.1",
+        "@jridgewell/sourcemap-codec": "^1.4.10",
+        "@jridgewell/trace-mapping": "^0.3.9"
+      },
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
+    "node_modules/@jridgewell/resolve-uri": {
+      "version": "3.1.0",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
+    "node_modules/@jridgewell/set-array": {
+      "version": "1.1.2",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
+    "node_modules/@jridgewell/sourcemap-codec": {
+      "version": "1.4.14",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@jridgewell/trace-mapping": {
+      "version": "0.3.17",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/resolve-uri": "3.1.0",
+        "@jridgewell/sourcemap-codec": "1.4.14"
+      }
+    },
+    "node_modules/@webassemblyjs/ast": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/helper-module-context": "1.9.0",
+        "@webassemblyjs/helper-wasm-bytecode": "1.9.0",
+        "@webassemblyjs/wast-parser": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/floating-point-hex-parser": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@webassemblyjs/helper-api-error": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@webassemblyjs/helper-buffer": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@webassemblyjs/helper-code-frame": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/wast-printer": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/helper-fsm": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "ISC"
+    },
+    "node_modules/@webassemblyjs/helper-module-context": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/helper-wasm-bytecode": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@webassemblyjs/helper-wasm-section": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/helper-buffer": "1.9.0",
+        "@webassemblyjs/helper-wasm-bytecode": "1.9.0",
+        "@webassemblyjs/wasm-gen": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/ieee754": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@xtuc/ieee754": "^1.2.0"
+      }
+    },
+    "node_modules/@webassemblyjs/leb128": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@xtuc/long": "4.2.2"
+      }
+    },
+    "node_modules/@webassemblyjs/utf8": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@webassemblyjs/wasm-edit": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/helper-buffer": "1.9.0",
+        "@webassemblyjs/helper-wasm-bytecode": "1.9.0",
+        "@webassemblyjs/helper-wasm-section": "1.9.0",
+        "@webassemblyjs/wasm-gen": "1.9.0",
+        "@webassemblyjs/wasm-opt": "1.9.0",
+        "@webassemblyjs/wasm-parser": "1.9.0",
+        "@webassemblyjs/wast-printer": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/wasm-gen": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/helper-wasm-bytecode": "1.9.0",
+        "@webassemblyjs/ieee754": "1.9.0",
+        "@webassemblyjs/leb128": "1.9.0",
+        "@webassemblyjs/utf8": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/wasm-opt": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/helper-buffer": "1.9.0",
+        "@webassemblyjs/wasm-gen": "1.9.0",
+        "@webassemblyjs/wasm-parser": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/wasm-parser": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/helper-api-error": "1.9.0",
+        "@webassemblyjs/helper-wasm-bytecode": "1.9.0",
+        "@webassemblyjs/ieee754": "1.9.0",
+        "@webassemblyjs/leb128": "1.9.0",
+        "@webassemblyjs/utf8": "1.9.0"
+      }
+    },
+    "node_modules/@webassemblyjs/wast-parser": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/floating-point-hex-parser": "1.9.0",
+        "@webassemblyjs/helper-api-error": "1.9.0",
+        "@webassemblyjs/helper-code-frame": "1.9.0",
+        "@webassemblyjs/helper-fsm": "1.9.0",
+        "@xtuc/long": "4.2.2"
+      }
+    },
+    "node_modules/@webassemblyjs/wast-printer": {
+      "version": "1.9.0",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/wast-parser": "1.9.0",
+        "@xtuc/long": "4.2.2"
+      }
+    },
+    "node_modules/@xtuc/ieee754": {
+      "version": "1.2.0",
+      "dev": true,
+      "license": "BSD-3-Clause"
+    },
+    "node_modules/@xtuc/long": {
+      "version": "4.2.2",
+      "dev": true,
+      "license": "Apache-2.0"
+    },
+    "node_modules/acorn": {
+      "version": "5.7.4",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/acorn-jsx": {
+      "version": "3.0.1",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "acorn": "^3.0.4"
+      }
+    },
+    "node_modules/acorn-jsx/node_modules/acorn": {
+      "version": "3.3.0",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/ajv": {
+      "version": "4.11.8",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "co": "^4.6.0",
+        "json-stable-stringify": "^1.0.1"
+      }
+    },
+    "node_modules/ajv-keywords": {
+      "version": "1.5.1",
+      "dev": true,
+      "license": "MIT",
+      "peerDependencies": {
+        "ajv": ">=4.10.0"
+      }
+    },
+    "node_modules/ansi-escapes": {
+      "version": "1.4.0",
+      "dev": true,
+      "license": "MIT",
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+      "dev": true
+    },
+    "worker-farm": {
+      "version": "1.7.0",
+      "dev": true,
+      "requires": {
+        "errno": "~0.1.7"
+      }
+    },
+    "wrap-ansi": {
+      "version": "5.1.0",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "^3.2.0",
+        "string-width": "^3.0.0",
+        "strip-ansi": "^5.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.1",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "3.2.1",
+          "dev": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "dev": true
+    },
+    "write": {
+      "version": "0.2.1",
+      "dev": true,
+      "requires": {
+        "mkdirp": "^0.5.1"
+      }
+    },
+    "write-file-atomic": {
+      "version": "2.4.3",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.11",
+        "imurmurhash": "^0.1.4",
+        "signal-exit": "^3.0.2"
+      }
+    },
+    "xtend": {
+      "version": "4.0.2",
+      "dev": true
+    },
+    "y18n": {
+      "version": "4.0.3",
+      "dev": true
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "dev": true
+    },
+    "yapool": {
+      "version": "1.0.0",
+      "dev": true
+    },
+    "yargs": {
+      "version": "13.3.2",
+      "dev": true,
+      "requires": {
+        "cliui": "^5.0.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^3.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.1.2"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.1",
+          "dev": true
+        },
+        "find-up": {
+          "version": "3.0.0",
+          "dev": true,
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "dev": true
+        },
+        "locate-path": {
+          "version": "3.0.0",
+          "dev": true,
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "p-limit": {
+          "version": "2.3.0",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "p-try": {
+          "version": "2.2.0",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
+      }
+    },
+    "yargs-parser": {
+      "version": "13.1.2",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    },
+    "yn": {
+      "version": "3.1.1",
+      "dev": true
+    }
+  }
+}
diff --git a/package.json b/package.json
index b5d8865..e94db85 100644
--- a/package.json
+++ b/package.json
@@ -33,6 +33,7 @@
     "babel-preset-env": "1.7.0",
     "eslint": "3.19.0",
     "eslint-config-scratch": "3.1.0",
+    "json": "9.0.6",
     "tap": "12.7.0",
     "web-audio-test-api": "0.5.2",
     "webpack": "4.46.0",