zplane deCoda v1.3-NeBULA

zplane deCoda is a Windows song-analysis utility for musicians, singers and hobby producers who want to understand recorded music and practise it more effectively. Load an audio file to analyse its key, tempo and chords, with section detection that helps you locate verses, choruses and other parts of the arrangement.

For learning by ear, deCoda lets you slow the track down so fast phrases and detailed playing are easier to follow. You can also shift the song into a different key to suit your vocal range or make practising on your instrument more comfortable. Its Focus EQ helps you emphasise or reduce selected elements in the mix, making particular parts easier to hear while you study them.

Whether you are working out a chord progression, rehearsing a cover or examining how a reference track is structured, deCoda brings useful listening and analysis tools into one place. It is a practical companion for Windows-based music workflows, with the emphasis on learning songs rather than creating sounds.