I've found one called Rhythm 1.0 but it seems it no longer exists. Anybody know of something similar?
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Have a vague recollection of Rhythm. To display on timeline Could use timeline markers.
Test script. 180 bpm at 24 fps comes out as 8 frames per beat (fpb). A timeline marker is added at every fpb frames starting from 1. The "|" name can be set to nothing "", or whatever.
import bpy scene = bpy.context.scene bpm = 180 fps = scene.render.fps fpb = 60 * fps / bpm print("frames per beat", fpb) frame = scene.frame_start while frame < scene.frame_end: scene.timeline_markers.new("|", frame) frame += fpb