Microsoft Research Songsmith

What if you have a desire to write a song but you don’t know how to do it at all? Then you can come in handy new development of the research laboratory Microsoft - Microsoft Research Songsmith . Songsmith generates accompaniment by adjusting to the singing voice.

In order to record a song using Songsmith, simply select the musical style:

Set the pace:

After that, sing into the microphone and get the result - the accompaniment with the attached chords:

Songsmith website
Demo songs
Download a trial version of Songsmith

The trial version of Songsmith runs for six hours of pure program usage.
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The GUI of the application is written using the Windows Presentation Foundation technology, which allows you to simply get nice effects in the graphical interface.