AnthemScore!

Audiveris is an open-source Optical Music Recognition software which processes the image of a music sheet to automatically provide symbolic music information in MusicXML standard. This opens the door to many tools (score editor, MIDI sequencer, ...) which can use this symbolic data for such tasks as edit, play, print, re-publish, transpose, query, etc.

The Transcribe! application is an assistant for people who sometimes want to work out a piece of music from a recording, in order to write it out, or play it themselves, or both. It doesn't do the transcribing for you, but it is essentially a specialised player program which is optimised for the purpose of transcription. It has many transcription-specific features not found on conventional music players. (The free trial lasts for 31 days.)

Free WAV to MIDI converter for music transcription. AmazingMIDI automatically transcribes music, converting WAV files into MIDI files. It can recognize single-instrument polyphonic music. It's a powerful tool to help you to transcribe music, to practice musical instruments and to make MIDI files, and so on.

Polyphonic Music Recognition Software. Neuratron AudioScore Ultimate music transcription software.