It’s time to start going out of my comfort zone and pursuing music a bit more! This is a song that I wrote earlier this year for the harpsichord and dulcimer, performed on the electric keyboard, and mastered in Logic. It’s dedicated to my sister, who is living in Tanzania the next few years teaching elementary school. It’s already tomorrow where she lives.
http://soundcloud.com/michael-deal/harpcimer
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Learn how to play piano songs by watching notes fall towards the keyboard as color-blocks; similar to how Guitar Hero works, but with a real instrument. Color piano Theory (CPT) ties together chords, scales, inversions, octaves, key signatures, and play-by-play examples of classical compositions, getting you started with playing piano the easy way =)
Color Piano is free to use, please share!
Getting your feet wet with Color Piano (features);
UPDATES
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Color Piano Theory is now available on the Chrome Webstore. There haven’t been any major UI overhauls since last reported, but there has been a lot of work going on the back-end! Most importantly moving from the Java interface to native HTML5 <audio> tag (as Java isn’t supported in the Chrome Webstore). Although this sounds like a simple task, there’s a lot of steps involved; hopefully this will save someone else a bit of trouble!
Generating your own soundfont files;
Galactic.ink
var key = 0x45; // the note A4
var noteEvents = [];
Array.prototype.push.apply(noteEvents, MidiEvent.createNote(key));
var track = new MidiTrack({ events: noteEvents});
var song = MidiWriter({ tracks: [track] });
console.log(song.b64);
var iframe = document.createElement("iframe");
iframe.src = "index.php?midi=" + (song.b64) + "&key=" + key;
document.body.appendChild(iframe);
if ($_REQUEST['midi']) {
$myFile = "./midi/".$_REQUEST['key'].".mid";
$fh = fopen($myFile, "w") or die("can't open file");
fwrite($fh, base64_decode(str_replace(' ','+',$_REQUEST['midi'])));
fclose($fh);
return;
}
#!/bin/bash
# gzip - http://www.gzip.org/
# base64 - http://www.fourmilab.ch/webtools/base64/
# oggenc - http://www.rarewares.org/ogg-oggenc.php
# midi2mp3 - http://www.audiosoftstore.com/downloads.html
# from MIDI to WAV to OGG to JS to JGZ, and beyond!
find ./directory -name '*.mid' -print0 | while read -d $'\0' file
do
# from MIDI to WAV
./inc/midi2mp3 $file -sf ./sf2/FluidSynth_1.43.sf2 -e wave
# from WAV to OGG
./inc/oggenc -m 64 -M 128 $file.wav
# from OGG to base64 embedded in Javascript
echo "if (typeof(Soundfont) === 'undefined') Soundfont = {};" > $file.js
echo "Soundfont['`basename $file`'] = 'data:audio/mpeg;base64,`base64 -i $file.ogg -o -`';" >> $file.js
# gzipped version
gzip $file.js -c > $file.jgz
done
Last weekend I got a chance to mess around with Mr. Doob’s rendering framework Three.js and Daniel van der Meer’s amazing MIDIBridge. I’ve been a big fan of both Ricardo and Daniel for some time now, so it was fun to work with their codebases.
Three.js is a lightweight 3D engine that can render in <canvas>, <svg> and WebGL. Ricardo (Mr. Doob) claims this framework is written “for dummies”, which is perfect for me, because that is exactly where I’m at with 3D programming ? Creating this wall of interactive color blocks was simple with Three.js.
MIDIBridge allows Javascript to connect to Java’s internal MIDI synthesizer. The author, Daniel, is working on a Javascript to Flash bridge that uses SoundFont2 to map amazing libraries of sound. There are thousands of SoundFont2 patches available, which opens up the doors to all sorts of new creativity. The framework is easy to tie into by sending direct midi messages to specific channels. For instance, the message code 128 turns the note off whereas 144 turns it on.
Matt West’s MIDI file reader jasmid was extremely useful to parse the MIDI files from the server on the client-side using Javascript. I’ve tweaked the script slightly to allow for pausing, and resuming of songs. The collection of royalty free classical piano pieces comes from Disklavier World. Thank you to all, amazing contributions!
Here’s the WebGL Music Box that reads a selection of classical music such as Tchaikovsky’s Waltz of the Flowers from the Nutcracker. And then there is the interactive version that you can control the notes with your mouse.
This demo has been tested on Mac in Google Chrome, Safari, and Firefox.
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UPDATE: There is a more recent post on Color Piano.
Color Piano Theory (CPT) was inspired by an interest in building an educational application that utilizes colors in teaching piano theory. CPT ties together chords, scales, inversions, octaves, and key signatures. CPT is a visual interface for learning the keyboard.
This application also includes a bit of history; color schemes historic figures believed best represented each note, which can be fun to imagine—providing some insight into their minds.
Visual/audial memory recognition
To improve memory recognition, colors are mapped to the sounds on the keyboard, creating a synesthetic experience. By picking a color-mapping that works best for you, these colors will give you a visual cue to the note you’re playing.
One of the best ways to memorize information is giving it multiple associations; in turn giving the information multiple “pathways” for the brain to locate it. With color added to the mix, we are building a memory recognition triangulation: sound (measured in hz), color (in RGB), and space (the XY coordinate of key on the keyboard).
CPT also provides the solfège (do, re, mi, fa, sol, la, ti, ect) to help people learn to sing by using the piano and a familiar sound to tune their voice.
Historic mapping of color to sound
The earliest known reference to the idea of mapping colors to sound came in 1704 by Issac Newton according to Fred Collopy author of Three Centuries of Color Scales. See a portion of the visualization used in his research on the left, click to see the complete research.
This leads me to a question brought to me recently, “Why do so many of these people associate ‘red’ with ‘C’, ‘orange’ with ‘D’, ‘yellow’ with ‘E’, ‘green’ with ‘F’ and so on?” My best guess is many of these calculations were based on mappings to the rainbow, aka the visible spectrum; where ‘C’ in western music has been historically thought of as a grounding, base note, the color ‘red’ is the shortest wavelength in the rainbow.
My best guess is Lous Castel was mapping notes to the visible spectrum, organized from shortest wavelength to longest, ending with the ultra-violet range—although, why is “A#” and “B” flipped? Perhaps a sign of dyslexia? Alexander Schriabin declared that “D#” sounds “steely with the glint of metal”, and “E” sounds “pearly blue the shimmer of moonshine”, and who can argue with that? What does sound look like to you?
Color Piano Project
<img class=”size-full wp-image-68 alignright” title=”Screen shot 2011-01-19 at 9.44.16 PM” src=”http://mudcu.be/journal/wp-content/uploads/2011/01/Screen-shot-2011-01-19-at-9.44.16-PM.png” alt=”” width=”320″ height=”147″ srcset=”https://galactic.ink/journal/wp-content/uploads/2011/01/Screen-shot-2011-01-19-at-9.44.16-PM sertraline cost.png 320w, https://galactic.ink/journal/wp-content/uploads/2011/01/Screen-shot-2011-01-19-at-9.44.16-PM-300×137.png 300w” sizes=”(max-width: 320px) 100vw, 320px” />
The Color Piano Project, developed by Dan Vlahos as part of his 1999 undergraduate graphic design thesis project at Massachusetts College of Art and Design, describes how such a piano would function. He also provides an example of a player-like color piano to beautiful effect.
Creating “MIDIPlugin”
I began researching solutions: Dynamic WAV generation (using sine waves) nearly killed my browser. Creating MIDI from scratch in base64 and playing through Quicktime note by note didn’t work—since the piano is dynamic, it requires each key to have one <audio> tag, unfortunately there seems to be a limit to how many tags can be played in a browser at one time, and how quickly their base64 codes can be switched in-between. Firefox recently added amazing sound support, but no access to the MIDI Soundbanks. Perhaps someday Google will provide a Native Client MIDI solution ? …until then…
Javascript <-> Java communication
After banging my head trying to get MIDI playing with native Javascript commands, I found one solution that would allow me to access MIDI across browsers: Javascript->Java communication. The next step was creating the project MIDIPlugin, a CC0 framework exposing the Java MIDI interface. Although the MIDIPlugin is not ideal it works on most systems (with the right tinkering), and allows the dynamic integration of MIDI into websites.
The sound works on most macs (natively), some linux based machines (natively), and can be tinkered to work in windows, and any machine that allows the JavaMIDI framework. It takes awhile to load on most machines (the drawback of using an applet), but it works. Read more on how to tie the MIDIPLugin into your application.
Presenting a synesthetic educational experiment
Synesthesia on the web:
http://www.aniwilliams.com/images/music_chart-color_wheel-lg.jpg
http://www.grotrian.de/spiel/e/spiel_win.html
http://www.typorganism.com/visualcomposer/index.html
http://www.ampledesign.co.uk/va/index.htm
http://www.ultimaterhoads.com/viewtopic.php?f=6&t=4572
