Pitch Tempo

I built Pitch Tempo for musicians who need a short practice copy in a different key or at a slower speed. Upload a recording, estimate its key and BPM, change pitch and tempo independently, then preview and download the result. Pitch changes run from −12 to +12 semitones; tempo ranges from 50% to 150%. Files can be up to 5 minutes and 100 MB. Processing runs on the server, and the preview covers the opening 20 seconds. Guest audio expires 24 hours after upload; free accounts retain it for 7 days. Download a copy you want to keep.