EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
Express Scribe - Express Scribe transcription software and audio player specifically designed for typists.
GNU Solfege - GNU Solfege is free music education software.
Transcribe - An online app that reduces the pain of converting audio & video to text. Saves thousands of hours every month for journalists, lawyers, students and professional transcriptionists all over the world, including researchers in Antarctica.
LenMus - LenMus is a free program for learning music.
oTranscribe - A free web app to take the pain out of transcribing recorded media