ULTRAMUSIC.JP RESEARCH / 001

INTERVAL SCOPE

Studies in Intervals and Harmony

220.00 Hz
INTERVAL / RATIO
Perfect Fifth
B / A = 1.4983B : A ≈ 3 : 2 · −2.0 cents
FREQUENCY B329.63 Hz
1 : 13 : 42 : 31 : 21 : 31 : 4

A : B RATIO · DRAG TO TUNE · SHORT TAP TO MUTE B

01 /

HARMONIC SCOPE

A B
3A ↔ 2B Δ 0.74 Hz
FREQUENCY → · LOG SCALE
02 /

WAVEFORM

A ↑ · hold 2 cycles · exact ratios lock
03 /

INTERVALS

PIANO
12-TET ENTRY
12-TET divides an octave into twelve equal steps.

音程と倍音、ハーモニーを耳で比べ、純正律・平均律の周波数比やうなりを観察するインターバル研究ツールです。