Kotek
Learn Kotekan with Real Gangsa
Free · Designed for iPad. Not verified for macOS.
Put your phone on a stand above your gangsa. Kotek watches which bilah you strike, listens for when, and lights the next note on the instrument itself.
Kotek turns a real Balinese gangsa into a guided practice partner.
Set your iPhone on a stand above the instrument. The camera sees which bilah you strike, the microphone hears when, and the next note lights up right on the keys in front of you so your eyes stay on the instrument, not on a score.
LEARN THE INTERLOCK
Kotekan is one melody split between two players: polos on the beat, sangsih in between. Kotek plays the half you are not playing, so the interlock is there even when you practise alone — and when you are ready, switch sides without stopping.
YOUR INSTRUMENT, NOT A GENERIC ONE
Every gamelan in Bali is tuned differently. Kotek learns yours: how many keys it has, where they sit, and what a real strike sounds like, so a clap or a voice in the room is not mistaken for a note. Save more than one gangsa and pick up where you left off on each.
PRACTISE THE WAY IT IS TAUGHT
Hear the figure first, then play along with it, then mute it and play alone. Slow the tempo down while the pattern settles into your hands. Every gong cycle is scored, and your best run is kept.
GROW WITH THE INSTRUMENT
Each gangsa earns a rank as you land notes on it — from Paria, finding the keys, to Brahmana, when the weave is yours.
INCLUDES
Kotekan figures across three levels, from Ubitan Nyendok upwards • Lagu dolanan melodies to play in unison • In-app guides to kotekan, polos and sangsih, and the gangsa itself
Made with Sanggar Mekar Bhuana in Bali.
Kotek needs a gangsa (pemade or kantilan) and a way to hold your iPhone above it. Everything stays on your phone: nothing is uploaded, and there are no accounts.
Built at Apple Developer Academy Bali for the gamelan community.
Rhea - Kio - Babono - Steven - Dimas
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The developer, Muhammad Nurul Akbar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
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Information
- Seller
- Muhammad Nurul Akbar
- Size
- 29.4 MB
- Category
- Education
- Compatibility
Requires iOS 26.5 or later.
- iPhone
Requires iOS 26.5 or later. - iPad
Requires iPadOS 26.5 or later. - Mac
Requires macOS 26.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.5 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 iRama Team