MathRonome vs Strange Loop

MathRonome is a polyrhythmic visual metronome designed for musicians, music teachers, and students. Watch two independent rhythms orbit in sync, hear every beat, and build your rhythmic vocabulary from simple time-keeping to complex polyrhythms. FEATURES • Two independent metronomes (M1 & M2) with visual ring animation • Subdivisions from 2 to 5 (free) or 2 to 32 (Pro) • Common Pulse — hear and see the pulse both layers share, with the moments they meet accented on the dial • Divisible Beats — long-press any beat to split it into equal sub-beats (triplets, quintuplets, sixteenths) and toggle each one • Toggle individual beats on/off to create custom patterns • Randomize beat patterns for sight-reading practice • 1 sound preset (free) or 4 presets: Percussion, Drums, Marimba, Piano (Pro) • Adjustable tempo from 1 to 120 RPM • Independent volume and mute controls per metronome • Background audio — keep practicing while using other apps • Bluetooth audio latency compensation slider • Interactive tutorial with step-by-step guidance • Works on iPhone and iPad PRO UPGRADE ($2.99, one-time) • Full subdivision range: 2 to 32 • All 4 sound presets • Swap M1 and M2 subdivisions instantly • Switch Mode: automatically alternate between metronomes Perfect for: • Music students learning polyrhythms (3:4, 5:7, etc.) • Teachers demonstrating rhythm concepts visually • Drummers and percussionists building independence • Any musician wanting to strengthen their internal clock No subscription. No ads. One optional upgrade. New in 1.2: Common Pulse. Switch on the pulse the two layers share and watch the polyrhythm resolve — a subtle shaker marks the smallest beat both rhythms have in common, dots around the dial show where each layer falls, and the moments where they meet ring out a little louder and brighter. The clearest way yet to hear, and see, two rhythms lock together.

Strange Loop writes its own music. Three coupled Lorenz attractors drive the piece — one proposes pitch, one shapes rhythm, one wanders the emotional plane. A Markov policy then decides what actually plays, learning from its own output and rewarding intervals that sound consonant. Chaos proposes, the policy disposes. Slide BLEND to choose who wins. Nothing is pre-recorded and nothing loops. Every run is new. PAINT ON THE MATHS Both scopes are paintable. Draw on the attractor and the trajectory bends toward what you drew and lingers there, pulling the melody into those pitches. Draw on the mood pad and the feeling follows your strokes — brightening the harmony, lifting the register, pushing the tempo. Set how hard the ink leans, how big the brush is, and how long it lasts before it fades. WHAT YOU GET • 26 scales — major and minor modes, pentatonics, blues, whole tone, harmonic and melodic minor, altered, both octatonics, and folk scales from Japan, China, Egypt, Spain, Arabia and Hungary • 7 accompaniment styles — chaos grooves, jazz comping with walking bass, stride piano, Alberti bass, classical, arpeggios, ambient rolls • A sampled grand piano plus synthesised voices: soft piano, glass, strings, FM bell, AM organ, pluck, fat saw and more • 6 moods on a valence/arousal plane, from serene to tense, driving chord quality, register, tempo and note length • Live scopes — the attractors, the note-probability distribution the engine is sampling from, and the mood point, all drawn in real time • Deep control: key, scale, tempo, chaos rho, rhythm spread, grace notes, chord-tone pull, softmax temperature, per-track mixer • Record a take and export it as a standard MIDI file to the Files app — melody, chords and bass on separate tracks TWO AUDIO UNITS Strange Loop ships as an instrument AUv3 and as a MIDI processor AUv3, so it can either play its own sounds or sequence any other instrument in your host. Melody, chords and bass each send on their own MIDI channel, so one instance can drive three different instruments. Both Audio Units follow your host's transport and tempo — hit play in AUM, GarageBand, Logic, Cubasis or Zenbeats and it locks to the grid. One install registers both. CREDITS Sampled piano: Salamander Grand Piano by Alexander Holm (CC BY 3.0).