Given a tempo marking in bpm (beats-per-minute), how can I work out the length of a crotchet (quarter-note) beat?
At the start of a guitar or drum score , there are always these 2 numbers which I don't understand What do the 2 numbers circled in red mean ??
The jazz guitarist John McLaughlin once published a book of scores for a number songs that he composed for his Mahavishnu Orchestra. There are some very unusual theoretical conundrums that come up ...