添加一些关于midi播放的项目

Midi/arduino-midi-player-master/jasmid/README

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+# Midifile.js
+
+This module parses the Standard Midi File.
+
+The code was modified to adapt to the 'require' way of nodejs. Irrelevant code have been removed.
+
+The SMF parser part of the jasmid project is used. See jasmid's README and LICENSE for more info
+
+Jasmid's original repository: https://github.com/gasman/jasmid
+
+# JASMID Original Readme
+
+```
+jasmid - A Javascript MIDI file reader and synthesiser
+
+Originally presented at BarCamp London 8, 13-14 November 2010
+
+Instructions:
+Open index.html in browser. Turn up volume. Click on link.
+
+Sound output is via one of the following mechanisms, according to what your
+browser supports:
+* Mozilla Audio Data API <https://wiki.mozilla.org/Audio_Data_API>
+* Web Audio API
+    <https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html>
+* a Flash fallback originally taken from dynamicaudio.js by Ben Firshman
+    <https://github.com/bfirsh/dynamicaudio.js> and hacked around by me.
+
+
+The code:
+stream.js - helper library for reading a string as a stream of typed data
+midifile.js - parses the MIDI file format into a header and a list of tracks,
+    each consisting of a list of event objects
+replayer.js - steps over the data structure generated by midifile.js and calls
+    the appropriate operations on the synthesiser
+synth.js - audio synthesiser; generates waveforms according to tweakable
+    parameters
+audio.js - passes the generated waveform to either the Audio Data API or the
+    Flash fallback widget (da.swf)
+
+
+Limitations:
+* The only event types supported by replayer.js are note on, note off, tempo
+    change and program change
+* There are currently only two instrument presets defined in synth.js - one for
+    strings and a 'piano' one for everything else - and neither of them are
+    particularly good (just a single volume-modulated sine wave).
+
+
+Matt Westcott <[email protected]> - @gasmanic - http://matt.west.co.tt/
+```