AudioStretch may be the only slow-downer app that does video. AudioStretch is a “music transcription tool.” It’s a universal iOS app that slows down music, and/or changes its pitch, so you can learn ...
Perfect Tempo lets you speed up or slow down any song in Apple Music, so you can learn how to play it. Unlike every other app that does this, Perfect Tempo works on any song on the Apple Music service ...
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