Original sentence: Genesis of a Music, Harry Partch.The instrument is played with flageolet tones as well as pressing the strings on the wood.The odd thing about this is, these fret positions are actually undertones of the overtones from the harmonic series
Edited sentence: Genesis Of A Music: An Account Of A Creative Work, Its Roots, And Its Fulfillments (Second Edition).ISBN 030680106X.Partch, Harry (1979).The instrument is played with flageolet tones (harmonics) as well as pressing the strings on the wood.The unexpected thing about this is, these fret positions are actually the corresponding undertones of the overtones from the harmonic series