== Software Protocol ==
Unlike MIDI doesn’t contain audio protocols data; it’s a set of commands that transmit sound wavesa synthesizer, MIDI carries event messages—instructions about what to playsampler, how or software interprets to play it, and whengenerate sound. These messages include:
*Note On/Off: Triggers a note (eThis makes MIDI files tiny compared to audio files—think kilobytes versus megabytes.g., "play middle C") and stops it.*VelocityThe commands are: Indicates how hard a note is struck (volume or intensity, typically 0-127).*Pitch Bend: Adjusts a note’s pitch in real-time.*Control Change (CC): Modifies parameters like volume, pan, or modulation (e.g., CC#7 for volume).*Program Change: Switches instrument sounds (e.g., from piano to violin).
MIDI doesn’t contain audio data; it’s {| class="wikitable"|-! Status Byte (Hex) !! Message Type !! Data Bytes !! Description|-| 0x8 || Note Off || 2 || Stops a set of commands that note from playing|-| 0x9 || Note On || 2 || Starts a synthesizer, sampler, or software interprets note with velocity|-| 0xA || Polyphonic Key Pressure || 2 || Adjusts pressure on a specific note|-| 0xB || Control Change || 2 || Modifies a controller setting|-| 0xC || Program Change || 1 || Changes the instrument patch|-| 0xD || Channel Pressure || 1 || Applies pressure to generate sound. This makes MIDI files tiny compared to audio files—think kilobytes versus megabytes.all notes on a channel|-| 0xE || Pitch Bend || 2 || Shifts pitch up or down|-| 0xF || System Messages || Varies || System-wide commands|}
A MIDI message is typically 1-3 bytes long:
