Transcribe! for Linux 

Transcribe! offers many features to help transcribing music from recordings, including the ability to slow down the music without changing its pitch, and to analyse chords and show you what notes are present.
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Dtab 

DTAB is a powerful, yet easy to use Drum Tab Editor, which includes support for TAB Importing (play drum tabs from the web), MIDI Playback, MIDI export, Custom Midi sound sets, formatted exporting and of course Printing.
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Voice Insert ActiveX SDK 

API to Insert Speech To Text in any Windows Application.Supports English/Chinese/Japanese Engines, Limited Dictation, Voice Commands and Passwords. Enables Point'n Speak with Read Aloud Target. Also supports XML Scripting Input for Limited Dictation
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