Apps like Key Transposer

Here are some great alternatives to Key Transposer by Matt Hauser :
Transposer
Transposer
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Transposing Helper
Transposing Helper
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Guitar Chord Transposer Simple
Guitar Chord Transposer Simple
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Anytune - Music Speed Changer
Anytune - Music Speed Changer
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Winlive Pro Karaoke Mobile 2.0
Winlive Pro Karaoke Mobile 2.0
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Midi Sheet Music
Midi Sheet Music
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Backtrackit: Musicians Player
Backtrackit: Musicians Player
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Song Key Finder
Song Key Finder
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Amazing Slow Downer
Amazing Slow Downer
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MIDI Clef Karaoke Player
MIDI Clef Karaoke Player
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Music Player - MP3 Player & EQ
Music Player - MP3 Player & EQ
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Play Music
Play Music
★4.8
mMusic Audio Player
mMusic Audio Player
★4.2
Cover Band Tracks
Cover Band Tracks
★5.0
Easy Piano Keyboard - Piano88
Easy Piano Keyboard - Piano88
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Music Player
Music Player
★4.3