Midi To Base64 -

song_data = "title": "My Melody", "composer": "Anonymous", "midi_base64": b64_midi

certutil -encode my_song.mid output.txt (Then remove the -----BEGIN CERTIFICATE----- lines manually.) Python (most common) import base64 Read MIDI file as binary with open('song.mid', 'rb') as f: midi_bytes = f.read() Encode to Base64 string b64_string = base64.b64encode(midi_bytes).decode('utf-8') midi to base64

MIDI (Musical Instrument Digital Interface) is a binary file format ( .mid or .midi ) that stores musical performance data: notes, timing, tempo, instruments, etc. song_data = "title": "My Melody"

import base64 from midiutil import MIDIFile midi = MIDIFile(1) midi.addTempo(0, 0, 120) midi.addNote(0, 0, 60, 0, 1, 100) const midiBuffer = fs.readFileSync('song.mid')

base64 -i my_song.mid -o my_song_base64.txt Or to output directly:

print(b64_string[:100]) # preview decoded_bytes = base64.b64decode(b64_string) with open('restored.mid', 'wb') as f: f.write(decoded_bytes) JavaScript (Node.js) const fs = require('fs'); const midiBuffer = fs.readFileSync('song.mid'); const base64String = midiBuffer.toString('base64');

<script> const b64 = "TVRoZAAAAA..."; // your full base64 string const binary = atob(b64); const arrayBuffer = new ArrayBuffer(binary.length); const view = new Uint8Array(arrayBuffer); for (let i = 0; i < binary.length; i++) view[i] = binary.charCodeAt(i); const blob = new Blob([arrayBuffer], type: 'audio/midi' ); const url = URL.createObjectURL(blob); new Audio(url).play(); </script> import base64, json with open('melody.mid', 'rb') as f: b64_midi = base64.b64encode(f.read()).decode('ascii')