# Luna family

(Redirected from Luna)

The luna family tempers out the hemithirds comma aka luna comma, 274877906944/274658203125, which has a monzo of [38 -2 -15.

Temperaments discussed elsewhere include:

## Luna

Subgroup: 2.3.5

Comma list: 274877906944/274658203125

Mapping: [1 4 2], 0 -15 2]]

POTE generator: ~262144/234375 = 193.201

## Hemithirds

Main article: Hemithirds

Subgroup: 2.3.5.7

Comma list: 1029/1024, 3136/3125

Mapping: [1 4 2 2], 0 -15 2 5]]

Wedgie⟨⟨15 -2 -5 -38 -50 -6]]

POTE generator: ~28/25 = 193.244

[[1 0 0 0, [5/2 3/4 0 -3/4, [11/5 -1/10 0 1/10, [5/2 -1/4 0 1/4]
Eigenmonzos (unchanged intervals): 2, 7/6
[[1 0 0 0, [10/7 6/7 0 -3/7, [82/35 -4/35 0 2/35, [20/7 -2/7 0 1/7]
Eigenmonzos (unchanged intervals): 2, 9/7

### 11-limit

Subgroup: 2.3.5.7.11

Comma list: 385/384, 441/440, 3136/3125

Mapping: [1 4 2 2 7], 0 -15 2 5 -22]]

POTE generator: ~28/25 = 193.227

Minimax tuning:

• 11-odd-limit: ~28/25 = [5/27 0 0 1/27 -1/27
[[1 0 0 0 0, [11/9 0 0 -5/9 5/9, [64/27 0 0 2/27 -2/27, [79/27 0 0 5/27 -5/27, [79/27 0 0 -22/27 22/27]
Eigenmonzos (unchanged intervals): 2, 11/7

Optimal GPV sequence: 25e, 31, 87, 118

### 13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 196/195, 352/351, 385/384, 625/624

Mapping: [1 4 2 2 7 0], 0 -15 2 5 -22 23]]

POTE generator: ~28/25 = 193.166

Optimal GPV sequence: 31, 56, 87, 118, 205d

## Lunatic

Subgroup: 2.3.5.7

Comma list: 4375/4374, 274877906944/274658203125

Mapping: [1 4 2 21], 0 -15 2 -113]]

Wedgie⟨⟨15 -2 113 -38 137 268]]

POTE generator: ~262144/234375 = 193.196

### 11-limit

Subgroup: 2.3.5.7.11

Comma list: 4375/4374, 12005/11979, 172032/171875

Mapping: [1 4 2 21 14], 0 -15 2 -113 -140]]

POTE generator: ~352/315 = 193.200

Optimal GPV sequence: 118, 323e, 441, 559, 1000e

## Hemiluna

Subgroup: 2.3.5.7

Comma list: 48828125/48771072, 67108864/66976875

Mapping: [1 4 2 -5], 0 -30 4 97]]

Mapping generators: ~2, ~200/189

Wedgie⟨⟨30 -4 -97 -76 -238 -214]]

POTE generator: ~200/189 = 96.591

### 11-limit

Subgroup: 2.3.5.7.11

Comma list: 5632/5625, 14641/14580, 131072/130977

Mapping: [1 4 2 -5 7], 0 -30 4 97 -44]]

POTE generator: ~200/189 = 96.587

Optimal GPV sequence: 87, 236, 323, 410

### 13-limit

Subgroup: 2.3.5.7.11.13

Comma list: 676/675, 1001/1000, 4096/4095, 14641/14580

Mapping: [1 4 2 -5 7 7], 0 -30 4 97 -44 -41]]

POTE generator: ~143/135 = 96.586

Optimal GPV sequence: 87, 236, 323, 410

## Semiluna

Subgroup: 2.3.5.7

Comma list: 4802000/4782969, 95703125/95551488

Mapping: [2 8 4 23], 0 -15 2 -54]]

Mapping generators: ~10125/7168, ~2187/1960

Wedgie⟨⟨30 -4 108 -76 87 262]]

POTE generator: ~2187/1960 = 193.1725

### 11-limit

Subgroup: 2.3.5.7.11

Comma list: 5632/5625, 9801/9800, 14641/14580

Mapping: [2 8 4 23 14], 0 -15 2 -54 -22]]

POTE generator: ~121/108 = 193.1732

Optimal GPV sequence: 56d, 118, 292, 410