harmonic interval

17 LETTERS · STARTS WITH H

harmonic interval is a valid 17-letter word worth 26 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

H4A1R1M3O1N1I1C3I1N1T1E1R1V4A1L1

4 + 1 + 1 + 3 + 1 + 1 + 1 + 3 + 0 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 1 =26 PTS

DOUBLE WORD → 52TRIPLE WORD → 78

MEANING

What does harmonic interval mean?