Most obvious 27edo mapping

sharpness = 4

L = 5 ; s = 1

27e mapping
Degree	Notation	Approximate Ratios	Approximate Ratios	Notation	Degree
0	P1	1/1	2/1	P8	27
1	m2	40/39, 39/38	39/20	M7	26
2	↑m2	20/19	19/10	↓M7	25
3	~2	14/13, 13/12	13/7	~7	24
4	↓M2	10/9	9/5	↑m7	23
5	M2	8/7	7/4	m7	22
6	m3	7/6	12/7	M6	21
7	↑m3	6/5	5/3	↓M6	20
8	~3	16/13	13/8	~6	19
9	↓M3	5/4	8/5	↑m6	18
10	M3	9/7, 13/10	17/11	m6	17
11	P4	4/3	3/2	P5	16
12	↑P4	15/11	22/15	↓P5	15
13	~4	7/5	10/7	~5	14

Good sounding 27edo chords