Pentachord
Pentachord , noun
[Latin pentachordus five-stringed, Greek penta`chordos; penta- five + chordh` string.]
1.
An ancient instrument of music with five strings.
2.
An order or system of five sounds. — Busby
Pentachord , noun
[Latin pentachordus five-stringed, Greek penta`chordos; penta- five + chordh` string.]