What is midi?

MIDI stands for Musical Instrument Digital Interface. It is a system that enables musical instruments and computers to communicate with each other. With MIDI, you can connect keyboards, drums, and other instruments to a computer. MIDI does not make sounds by itself. Instead, it sends messages about which notes to play, when to play them, and how loud to play them. This helps musicians create, edit, and arrange music using different sounds and instruments on their computers.

A Brief History​

MIDI was developed in 1983 by a group of electronic instrument manufacturers, including Roland, Yamaha, Korg, and others, led by Dave Smith of Sequential Circuits. The goal was to create a universal standard allowing different musical devices to work together seamlessly. Since its inception, MIDI has evolved, yet it remains a fundamental component of modern music technology.

How MIDI Works​

MIDI is a protocol that sends musical commands instead of real sounds. While audio signals carry the actual sound and occupy a significant amount of space, MIDI sends instructions such as which notes to play, how long to hold them, and how loud to play them. This makes MIDI files small and easy to edit, allowing different music devices to work together smoothly.

MIDI Messages​

MIDI sends different kinds of messages to control musical instruments. The main types include Note On and Note Off, which tell when you press or release a key; Control Change, which adjusts things like volume or effects; Program Change, which switches between different instrument sounds; Pitch Bend, which smoothly changes the pitch of a note; and Aftertouch, which adds extra pressure after a key is pressed for more expression.

MIDI Channels​

MIDI can handle up to 16 different channels, letting you control 16 separate instruments from one MIDI device. Each channel can be set to a different instrument to create rich, layered music with multiple sounds working together.

Components of a MIDI Setup​

Setting up MIDI involves several key components that work together to produce music. First, MIDI controllers, such as keyboards, pads, and wind instruments, send commands. Then, a MIDI interface connects these controllers to your computer or other devices. Next, you use software called DAWs (like Ableton Live or Logic Pro) to create and edit your music using the MIDI data. Finally, sound modules or synthesizers turn those commands into actual sounds through physical hardware or virtual instruments in your software.

Advantages of MIDI​

MIDI offers numerous advantages for creating music. You can easily tweak notes, volume, and timing of notes in the piano roll. MIDI files are tiny, so they're simple to store and share. One MIDI setup can control multiple instruments, providing you with greater variety in your tracks. MIDI syncs all your gear and software, making everything play smoothly.

Getting Started with MIDI​

To get started with MIDI, first choose a controller that matches your style, such as a keyboard for most music or pads for beats. Next, connect your controller to your computer using a MIDI interface, often just a USB cable. Then, install a DAW (like Ableton or FL Studio) on your computer and set up your controller in the software. Start learning basic MIDI editing by adding notes and adjusting how they play in the DAW's editor. Finally, try different virtual instruments in your DAW to assign and customize sounds to your MIDI data. These steps will help you easily begin making and managing music with MIDI.