How should material for loops (lock grooves) be prepared?
• The tempo must be exactly 133 1/3 bpm in order to fit a 4/4 bar onto a 33 1/3 rpm loop – that is the loop must be 1,8 seconds long. • The tempo must be exactly 180 bpm in order to fit a 4/4 bar onto a 45 rpm loop – the loop must be 1 1/3 seconds long. • We need a piece of the looped material , about 15 seconds long. • We can also prepare the material, if required.
