The seven - note diatonic scale, «do, re, mi, fa, so, la, ti (do),» is another familiar example, as is the ancient five - note, pentatonic scale used in Greek lyre music and nearly every riff played on the electric guitar. (sciencemag.org)
He analyzed recordings of 81 different birds, measuring the difference in frequency between each note and the next and looking for the same intervals used in diatonic, pentatonic, and chromatic scales. (sciencemag.org)
The Hohner company has produced more than 40 different models bearing the name Marine Band over the years, ranging from simple Richter diatonics with 20 Dating as an institution is a relatively recent phenomenon which has mainly emerged in the last few centuries. (myintimcity.com)