What is MIDI?

MIDI stands for Musical Instrument Digital Interface, a technical standard that allows electronic musical instruments, computers, and music software to communicate with each other. Instead of transmitting actual audio, MIDI sends digital messages that describe musical actions such as which note was played, how hard it was pressed, and when it started or stopped.

A MIDI message typically contains information such as pitch (the note being played), velocity (how strongly the note is played), timing, and control signals like modulation or pitch bend. Because MIDI transmits instructions rather than sound, it allows musicians to easily change instruments, edit performances, or modify compositions after they have been recorded.

MIDI is widely used in music production with digital audio workstations (DAWs) such as Ableton Live, FL Studio, and Logic Pro. Producers often use MIDI controllers, such as keyboard controllers or drum pads, to play and record MIDI data into these programs.

Once recorded, MIDI data can trigger sounds from virtual instruments, synthesizers, samplers, or hardware instruments. This flexibility makes MIDI an essential part of modern music production, composition, film scoring, and live performance, allowing creators to easily experiment with different sounds while keeping the same musical performance.