Table of comparison for pitch occurrence within each Group IV sub-class^*
	B# = C	C# = Db	D	D# = Eb	E = Fb	E# = F	F# = Gb	G	G# = Ab	A	A# = Bb	B = Cb
IVα	27	7	21	18	6	25	7	27	19	6	13	1
IVβ/η	10	2	10	13	8	11	8	10	2	-	11	8
IVγ	1	-	-	1	-	1	-	1	-	-	-	-
IVδ	3	11	9	10	-	10	-	9	-	-	3	8
IVε	1	-	1	-	-	-	-	-	-	-	-	1
IVζ	-	-	-	2	3	3	2	-	3	2	-	-
IVθ	-	-	1	1	-	-	-	-	1	-	-	-
IVι	-	2	-	2	-	-	-	-	-	-	2	-
IVκ	-	-	-	-	-	-	-	-	3	-	3	3
IVλ	-	1	1	-	2	-	1	-	1	-	-	-
IVμ	-	-	-	1	2	-	1	-	-	1	1	1
IVν	-	1	1	1	1	-	1	-	-	-	-	1
Totals	42	24	44	49	22	50	20	47	29	9	33	23

* Given in the table cells as the number of times the same pitch (and, if present, its enharmonic equivalent) are encountered. A dash indicates a count of zero.