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MIDI tutorial

Write chords, bass and hooks with MIDI in Logic Pro

Use Logic Pro MIDI tools to write chords, basslines, hooks and melodic ideas with cleaner editing, better rhythm and less theory panic. This guide is written for bedroom producers who want practical steps, not theory for its own sake.

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Updated 2026-09-15

What this Logic page helps you do

Logic works best when you build a clean writing template, capture performances quickly and use the mixer like a real console. This page focuses on one job: write musical parts that support the track. The point is to build a repeatable habit inside Logic Pro, then carry it into real tracks.

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Write a bassline against the kick

Start with the kick pattern and write the bass around it. Use Piano Roll, MIDI Transform, Chord Track-style workflow and scale helpers to edit note length, velocity and timing. A good bassline is often simpler than the producer wants it to be. It should lock with the drums and leave space for the hook.

Build chords that serve the section

Use two or four chords first. In Logic Pro, copy the progression into different sounds, then simplify. Pads can hold long notes, plucks can outline rhythm, and a low piano or synth layer can add weight. Do not make every chord layer play the full voicing.

Make the hook memorable

A hook can be three notes, a rhythm, a vocal chop or a repeated shape. Use the MIDI editor to remove notes until the phrase is easy to remember. If the part only works because the sound is exciting, test it on a plain instrument. The notes should still have a reason to exist.

Edit like a producer

Quantise only as much as needed. Human timing can help, but sloppy timing makes the groove uncertain. In Logic Pro, use the DAW-specific MIDI tools to tighten starts, control note length, shape velocity and create small variations between repeated sections.

Common mistakes to avoid

  • Writing chords before deciding the track mood or bass movement.
  • Making the hook too busy for a vocalist, lead sound or main sample to breathe.
  • Forgetting that Logic Pro MIDI editing is there to support feeling, not just grid perfection.

The repeat pattern is simple: keep the session readable, make the musical decision first, then add processing only when it solves a named problem.

Practice task

Write one four-bar chord progression in Logic Pro, then create a bassline and a three-note hook from the same notes.

Keep the result even if it is rough. The goal is to train a finishing habit inside Logic Pro, not to make every exercise release-ready.

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