Quick facts

What this app does

Rudiment Builder is a focused practice app for the 40 PAS International Drum Rudiments. Choose a rudiment, see its sticking and accents, hear and watch the stroke sequence, and practice at a fixed tempo, through a tempo ladder, or with an open–close–open path.

What you can practice

  • Rolls, diddles, flams, and drags from the PAS 40 catalog

  • Right- or left-hand lead

  • Accents, grace notes, diddles, buzzes, and grouped strokes

  • Fixed-tempo repetition

  • Tempo ladders with repetitions at each rung

  • Slow–fast–slow open–close–open practice

Some hybrid rudiment interpretations vary by published source and remain under educator proofing; the app identifies its PAS and N.A.R.D. educational lineage rather than claiming affiliation or endorsement.

How to use it

  1. Search for a rudiment or filter by family and level.

  2. Choose the leading hand and a suggested or custom tempo.

  3. Choose Fixed, Tempo Ladder, or Open–Close–Open practice.

  4. Set repetitions and tempo-path options.

  5. Choose full pulse, downbeat-only cue, or mute.

  6. Press Play and follow the highlighted sticking cells.

  7. Pause to hold your exact place or Reset to return to the start.

Controls and accessibility

  • Space: start or pause

  • R: reset

The app provides visible focus, reduced-motion support, responsive layouts, synchronized visual practice in mute mode, and a best-effort screen wake lock.

Privacy

Rudiment Builder requires no account or backend. Settings stay in your browser's local storage.

Help and feedback

When reporting a problem, include the app name, build, page URL, browser, what you expected, and what happened.

About

Rudiment Builder is a forever-free Backwerd Rhythm Shop practice app. It is independent and is not affiliated with or endorsed by the Percussive Arts Society or N.A.R.D.

© 2026 Backwerd Rimshot, LLC. All rights reserved.