Transcribe a radio broadcast talk into Word

This is a recording of a talk in English on BBC Radio 3 in 1975. The broadcast lasts 15 minutes, which includes three short musical examples (not for transcription). The MP3 file (35Mb) of the talk can be delivered by WeTransfer, or can be heard at this URL:
http://rootham.org/playlist/hutchings/listen_hutchings_talk.html

The talk's subject is the music of composer Cyril Rootham (1875-1938), so the required vocabulary is musical. The transcription should be delivered as a document in Microsoft Word format.