Observed arrival · 2026-10-30
Concentus, a practice kit for 31 string instruments
A forthcoming iPhone and iPad app that describes a tuner, chord and scale guides, ear training, and vocal warmups for guitar and 30 other string instruments.
○Open
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$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Players of less-common string instruments and multi-instrument learners
- Worth noticing
- The page specifically calls out paired strings, octave pairs, and re-entrant tunings for instruments including charango, cuatro, and tiple.
Field notes
The page organizes its proposed practice material around 31 named instruments and says users will be able to build an instrument not already listed. It describes chord shapes ordered from easiest first, scales accompanied by notes on their sound and origins, and ear-training prompts with a tip after each answer. The app is marked as coming soon, so the homepage documents its intended scope rather than demonstrating the app in use.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
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