9/4 |-2 2>
1403.9100 cents
https://en.xen.wiki/w/File:Jid_9_4_pluck_adu_dr220.mp3 sound sample
Pythagorean ninth; two perfect fifths (3/2 * 3/2); the ratio between the 4th and 9th harmonics; one octave above 9/8.