In developmentScale Overlay
Highlights the notes of your chosen scale on Logic Pro’s piano roll, FL Studio-style.
Write melodies in Logic Pro without wrong notes.
Four small Mac apps that bring FL Studio-style scale highlighting and ghost notes to Logic Pro, plus chord guides and a keyboard that stays in key.
The tools
All productsIn developmentIn development
Scale Keyboard
Play a MIDI keyboard or Logic’s Musical Typing and every note stays in your chosen scale, so you can write melodies without hitting a wrong note.
In development
Chord Overlay
Build a chord progression and see each chord’s notes highlighted on the piano roll, bar by bar.
In development
Ghost Notes
Shows notes from your other tracks as faint “ghost” notes behind the ones you’re editing in Logic’s piano roll.
In development
The MIDI Bundle
Scale Overlay, Scale Keyboard and Ghost Notes together.
Save £6.98 compared with buying them separately
How it works
- 01
Buy once
One payment, no subscription and no account to create.
- 02
Download and activate
Your licence key and download link arrive by email. Enter the key once, online.
- 03
Works offline
After activation the app runs without an internet connection.
Frequently asked questions
What is Flowfix Audio?
An independent software brand making small, focused macOS utilities for music production, starting with Logic Pro.
Which products are available?
Scale Overlay and Scale Keyboard launch first, with Chord Overlay and Ghost Notes to follow. The products page shows what is on sale now.
What do I need to run them?
Any Mac running macOS 13 Ventura or later, with Apple silicon (M1 and later) or an Intel processor, plus Logic Pro. Scale Overlay also works in GarageBand.
How do purchases work?
The buy button goes to a secure checkout hosted by Stripe. This site never handles payment details. After payment you get an email with your licence key and download link.