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Transposr – online service lets you convert your music into a new key for free


Transposr is a clever new online service which lets you convert your music –  either in textual chord form or an MP3 file – into a new key. The system is clearly aimed at simple vocal and choral works, but nevertheless it’s an interesting little app and one that could be useful for the musicians among you. The MP3 file conversion is fast, but the resulting audio is very low quality (no doubt to keep processing speeds fast).

 Upload any MP3 file to and let us know what key it is and what key you want it in and for free we will transpose it and give you a new MP3 file.

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