BPM Player does one job: you type a target BPM and the whole playlist plays at it. Every track is time-stretched in real time and keeps its original key. The number stays where you put it; the track changes, the tempo doesn't.

• BPM from the file's tags; untagged files get a marked estimate with one-click ÷2 / ×2
• Hold Space to hear a track at its original tempo, release to snap back
• A reference track above the playlist for A/B at the same tempo
• Drag rows out to Finder or an Ableton Live track, untouched
• Playlist loop and system-wide media keys

Built for DJs auditioning tracks at set tempo and for dance teachers running a class on one pulse. Plays MP3, WAV, FLAC, AIFF, M4A, AAC, OGG and Opus. Free, notarized, Apple Silicon, no account, no tracking.