There are many conceivable ways to map 50edo onto the onto the Lumatone keyboard. Only one, however, agrees with the Standard Lumatone mapping for Pythagorean.
Diatonic
Since 50edo is a good Meantone tuning, the Standard Lumatone mapping for Pythagorean is good for it, with a range of just under 5 octaves, which are distributed perfectly horizontally.
46
4
1
9
17
25
33
48
6
14
22
30
38
46
4
3
11
19
27
35
43
1
9
17
25
33
0
8
16
24
32
40
48
6
14
22
30
38
46
4
5
13
21
29
37
45
3
11
19
27
35
43
1
9
17
25
33
2
10
18
26
34
42
0
8
16
24
32
40
48
6
14
22
30
38
46
4
7
15
23
31
39
47
5
13
21
29
37
45
3
11
19
27
35
43
1
9
17
25
33
4
12
20
28
36
44
2
10
18
26
34
42
0
8
16
24
32
40
48
6
14
22
30
38
46
4
17
25
33
41
49
7
15
23
31
39
47
5
13
21
29
37
45
3
11
19
27
35
43
1
9
17
25
33
38
46
4
12
20
28
36
44
2
10
18
26
34
42
0
8
16
24
32
40
48
6
14
22
30
38
17
25
33
41
49
7
15
23
31
39
47
5
13
21
29
37
45
3
11
19
27
35
43
38
46
4
12
20
28
36
44
2
10
18
26
34
42
0
8
16
24
32
40
17
25
33
41
49
7
15
23
31
39
47
5
13
21
29
37
45
38
46
4
12
20
28
36
44
2
10
18
26
34
42
17
25
33
41
49
7
15
23
31
39
47
38
46
4
12
20
28
36
44
17
25
33
41
49
38
46
Porcupine
Bryan Deister has used a reverse-chroma expanded Porcupine layout for 50edo, as demonstrated in microtonal improv in 50edo (2025). The range is somewhat over 4 octaves, but the octaves ascend so rapidly as to zigzag. (Note that in the video, the upper left corner and whole right end are cut off due to use of only 1 MIDI channel, and the range shown is considerably less than theoretically possible.)
30
37
36
43
0
7
14
35
42
49
6
13
20
27
34
41
48
5
12
19
26
33
40
47
4
11
40
47
4
11
18
25
32
39
46
3
10
17
24
31
46
3
10
17
24
31
38
45
2
9
16
23
30
37
44
1
8
45
2
9
16
23
30
37
44
1
8
15
22
29
36
43
0
7
14
21
28
1
8
15
22
29
36
43
0
7
14
21
28
35
42
49
6
13
20
27
34
41
48
5
0
7
14
21
28
35
42
49
6
13
20
27
34
41
48
5
12
19
26
33
40
47
4
11
18
25
13
20
27
34
41
48
5
12
19
26
33
40
47
4
11
18
25
32
39
46
3
10
17
24
31
38
45
2
33
40
47
4
11
18
25
32
39
46
3
10
17
24
31
38
45
2
9
16
23
30
37
44
1
8
10
17
24
31
38
45
2
9
16
23
30
37
44
1
8
15
22
29
36
43
0
7
14
30
37
44
1
8
15
22
29
36
43
0
7
14
21
28
35
42
49
6
13
7
14
21
28
35
42
49
6
13
20
27
34
41
48
5
12
19
27
34
41
48
5
12
19
26
33
40
47
4
11
18
4
11
18
25
32
39
46
3
10
17
24
24
31
38
45
2
9
16
23
1
8
15
22
29
21
28
Trimean
If you want to access single step movements in a more intuitive way, the 1L 6s Trimean mapping is probably the best compromise between ease of play and range.
23
30
31
38
45
2
9
32
39
46
3
10
17
24
31
40
47
4
11
18
25
32
39
46
3
10
41
48
5
12
19
26
33
40
47
4
11
18
25
32
49
6
13
20
27
34
41
48
5
12
19
26
33
40
47
4
11
0
7
14
21
28
35
42
49
6
13
20
27
34
41
48
5
12
19
26
33
8
15
22
29
36
43
0
7
14
21
28
35
42
49
6
13
20
27
34
41
48
5
12
9
16
23
30
37
44
1
8
15
22
29
36
43
0
7
14
21
28
35
42
49
6
13
20
27
34
24
31
38
45
2
9
16
23
30
37
44
1
8
15
22
29
36
43
0
7
14
21
28
35
42
49
6
13
46
3
10
17
24
31
38
45
2
9
16
23
30
37
44
1
8
15
22
29
36
43
0
7
14
21
25
32
39
46
3
10
17
24
31
38
45
2
9
16
23
30
37
44
1
8
15
22
29
47
4
11
18
25
32
39
46
3
10
17
24
31
38
45
2
9
16
23
30
26
33
40
47
4
11
18
25
32
39
46
3
10
17
24
31
38
48
5
12
19
26
33
40
47
4
11
18
25
32
39
27
34
41
48
5
12
19
26
33
40
47
49
6
13
20
27
34
41
48
28
35
42
49
6
0
7
