3971/3969
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| Ratio | 3971/3969 |
| Factorization | 3-4 × 7-2 × 11 × 192 |
| Monzo | [0 -4 0 -2 1 0 0 2⟩ |
| Size in cents | 0.87215823¢ |
| Name | heartlandisma |
| Color name | 19oo1orr1, nonoloruru unison |
| FJS name | [math]\text{d1}^{11,19,19}_{7,7}[/math] |
| Special properties | reduced |
| Tenney height (log2 nd) | 23.9098 |
| Weil height (log2 max(n, d)) | 23.9106 |
| Wilson height (sopfr (nd)) | 75 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~1.20534 bits |
| Comma size | unnoticeable |
| S-expression | S19 / S21 |
| open this interval in xen-calc | |
The heartlandisma, with a ratio of 3971/3969 (also 3.7.11.19 subgroup) is the difference between two 21/19s and a 11/9 neutral third. Measuring about 0.87 ¢, it is an unnoticeable comma. By tempering it out is defined the heartlandismic temperament, which enables the heartlandismic chords.
Etymology
The name heartlandisma was named by Xenllium in 2023. It is so named because 21/19 (173.268 ¢) is within heartland range of Margo Schulter's equable heptatonic.