Tempo is the whole story
Workout music lives and dies by beats per minute, more than by genre or instrument. Lifting and HIIT sit around 120 to 140 BPM, fast enough to drive intent without rushing a rep. Running music works best when it tracks your actual cadence, roughly 150 to 180 BPM depending on pace, since a track that lands slightly off your footstrike feels wrong even when it sounds good on its own.
Cycling and spin classes are built around 128 BPM, the long-standing standard because it matches a comfortable seated pedal cadence and lines up with most instructor cueing. Cooldowns and yoga flows drop right down to 60 to 80 BPM, slow enough to bring the heart rate back down. Name the exact number in your prompt; the generator follows a stated BPM far more reliably than a vague word like 'fast'.