Guides and free tools
Practical arrangement help for producers: free tools that run in your browser, and guides with real bar counts.
Free tools
Song length calculator
Bars to minutes at any BPM, and back
BPM and key finder
Drop in a loop, get its tempo and key
Guides
Turn a loop into a full song
A repeatable method, with a drum and bass example
How long should an intro be?
Intro lengths by genre, in bars and seconds
Song structure library
100 structures across 13 genres
Plan your next track
arrangementLab turns a loop into a full arrangement on a visual canvas, with a production tip for every section.
Start free for 14 days