500 BPM (Beats Per Minute) is around ~0.13 second between sound, 20 BPM is 3 seconds between sound.
30 BPM is 2 seconds. 40 BPM is 1.5 seconds. 67 BPM is ~0.9 second. 76 BPM is ~0.8 second. 86 BPM is ~0.7 second. 100 BPM is 0.6 second. 120 BPM is 0.5 second. 150 BPM is 0.4 second. 200 BPM is 0.3 second. 300 BPM is 0.2 second. 600 BPM is 0.1 second but however scratch only goes up to 500 bpm (0.13).
