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$ npm install -g blob-opera-midi Usage Converting the MIDI file

Ne Irascaris Domine, by William Byrd (original proof of concept code).All Star (Bach Chorale Version), by Smash Mouth (stable code).

Here's to the Night, by Eve 6 (stable code).Here are some of my results (Twitter video links): To enable the blobs to sing arbitrary choral (SATB) arrangements I wrote a tool that converts multitrack MIDI files into the file format used by the blobs to play included example songs, and found a method to cause the blobs to load my file instead of the expected example file. MIDI control can be used to play the blobs like an organ but cannot control individual voices as a range of absolute MIDI pitches is assigned to each blob, making complex arrangements difficult. Mouse control is imprecise and only affects one voice at a time with no manual harmony. The musical toy can be controlled by dragging the blobs with your mouse or, if you have one connected, a MIDI input device like a keyboard or sequencer. It's definitely worth playing with the Blob Opera before using this tool. Backgroundīlob Opera is a "machine learning experiment by David Li in collaboration with Google Arts & Culture", allowing users to " own opera inspired song with Blob Opera - no music skills required". When you are ready, go to your Download Queue, and follow the download instructions.Quick and dirty tool to convert 4-part MIDI arrangments to Blob Opera format JSON. You should experiment first to see which type is compatible with your hardware. Some Disklavier, for example, can only play one or the other type. The 0 or 1 suffix on the download button indicates the type of the MIDI file: Type 0 or Type 1. To download a MIDI, click its download button, to add it to Download Queue. You may start your MIDI discovery by clicking "By Composer", "By Contributor", or typing what you're looking for, into our search box above. MIDI files can also be converted to sheet music, with the appropriate software. It was originally developed in the 1980s as a standard communications protocol for connecting hardware synthesizers together with sequencers, keyboards, and other devices which controlled them. Digital pianos, physical pianos and other real instruments, synthesizers, computerized virtual instruments, and even stage sets of an opera can all be controlled by MIDI. It is primarily used to communicate which, when, for how long, and how loud to play musical notes, and with which "instrument." But it can be used to communicate a great range of other performance data. In a nutshell, MIDI is a digital protocol, that is, a language which communicates performance instructions for any musical instrument or device (such as your sound card) which understands the language.