The Bohlen-Pierce Symposium
First symposium on the Bohlen-Pierce scale, Boston, March 7 – 9, 2010
Grolimund: A New Instrument – a New Scale

The first pan flute tuned to the Bohlen-Pierce scale was built in November 2009 by Ulrich Herkenhoff in Munich, Germany. The instrument was built based on my suggestion with the support of Heinz Bohlen.

Practicing with this instrument, I made the following observations: Intervals 8 and 5 sound better than you would expect from their more complex numerical ratios. 8, 5 and 13 – the interval of the tritave – are Fibonacci numbers. If we continue creating intervals according to the Fibonacci series, we get a new scale that is very close to the normal 12-set diatonic scale. So there are scales in BP that are more consonant and others provide a better scale design. If we follow this approach we can create other microtonal scales to test this quality.