Advanced Tutorials
Three deep dives for readers who are comfortable writing expressions by hand.
In this section
Microtonal Composition
Compose outside 12-TET. Equal temperaments (19-TET, 31-TET, quarter tones), just intonation up to the 23-limit, and the Bohlen–Pierce tritave scale. Also covers what the ≈ prefix and the hatched note rectangles are telling you.
Understanding SymbolicPower
What "exact" actually means in RMT Compose. Rational powers like 2^(12/12) and perfect roots like 4^(1/2) resolve exactly. Genuinely irrational powers like 2^(1/12) do not — they are approximated and the note is flagged. This page shows you where the line is, so you stop expecting exactness where the app never promised it.
Complex Dependencies
Multi-property references, branching and diamond structures, group edits on a selection, and the two escape hatches from a dependency chain — Liberate Dependencies and Evaluate to BaseNote.
Prerequisites
You should be comfortable with:
- Dependencies — referencing other notes
- Octaves — the
^operator and the ▲/▼ arrows - Measures — tempo, beats, measure chains
Before you type anything
The library already ships most of what these tutorials ask you to build by hand. Before you hand-enter a scale, check whether it is one drag away.
Scale Systems (6 modules) — a library section in its own right, not part of Melodies:
| Module | Notes | Step | Period |
|---|---|---|---|
| 12-TET | 13 | 2 ^ (1/12) | octave |
| 19-TET | 20 | 2 ^ (1/19) | octave |
| 31-TET | 32 | 2 ^ (1/31) | octave |
| Bohlen–Pierce | 14 | 3 ^ (1/13) | tritave (3/1) |
| Tesla | 81 | odd harmonics over 9 | ≈4.23 octaves |
| Mixed-Base | 12 | mixed 2-, 3- and 5-based steps | returns to base.f |
Intervals (46 modules) — just ratios from 1/1 through the 23rd harmonic, plus six commas, each carrying its ratio, cents and limit family.
Open the module bar's magnifier and type a ratio (7/4), a family (7-limit) or a tag (comma) to find them.
Recommended order
- Microtonal Composition — the sonic territory
- Understanding SymbolicPower — what the numbers are really doing
- Complex Dependencies — structure at scale
Next
- Workflow Tutorials — building a library, systematic interval study, structured listening experiments