From b32ee9267bcdd607c6067b6cd0dd3a4f1e229dd4 Mon Sep 17 00:00:00 2001
From: Eric Rosenbaum <eric.rosenbaum@gmail.com>
Date: Wed, 11 Jan 2017 11:40:35 -0500
Subject: [PATCH] properties for number of instruments and drums for use by vm

---
 src/index.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/index.js b/src/index.js
index 8bab2e0..7aab644 100644
--- a/src/index.js
+++ b/src/index.js
@@ -43,9 +43,11 @@ function AudioEngine () {
 
     // instrument player for play note blocks
     this.instrumentPlayer = new InstrumentPlayer(this.input);
+    this.numInstruments = this.instrumentPlayer.instrumentNames.length;
 
     // drum player for play drum blocks
     this.drumPlayer = new DrumPlayer(this.input);
+    this.numDrums = this.drumPlayer.drumSounds.length;
 }
 
 AudioEngine.prototype.setTempo = function (value) {