We are excited to share our new playback engine, featuring a range of new features designed to bring your music to life like never before.

Improved audio features

1. Accurate repeats, jumps, and multiple endings

Handles repeat barlines, multiple endings, and jumps — even when starting playback in the middle of a score.

2. Swing interpretation

Swing now only applies when the first note in the pair is an 8th note, creating a more natural swing feel.

Swing in Flat

3. Fermata

Fermatas now temporarily halve the tempo rather than simply doubling the note duration.

4. Dynamics — sfz, fp, rfz

Dynamic markings handled with greater precision.

5. Arpeggiato

Notes spread over 25% of the chord duration — more natural and closer to a live performance.

Arpeggiato in Flat

New supported notations in playback

6. Two notes tremolo / 7. Accelerando and ritardando / 8. Guitar harmonics / 9. Guitar bends / 10. Guitar let ring / 11. Guitar palm mute

Questions? hello@flat.io. Have a wonderful day!