Ulzii Drone

Ulzii is an instrument for fingertip meditation, inspired by Mongolian
throat-singing (khoomei) and the tradition of drone music.

At its core is continuous tuning, free from the twelve equal-tempered Western
scale. Two ribbons let you freely set the pitch of two voices; touching the
central pad shapes the color of that voice's resonance (like a vowel)
depending on where you touch.

The name "Ulzii" comes from the endless knot found in traditional Mongolian
ornamentation — echoing this app's core idea of an unbroken, continuous drone.

- Continuous tuning ribbons: note names are just reference points — slide
your finger to tune freely to anything in between
- Central pad: touch position shapes vocal resonance (overtone color); an
optional VOWELS overlay shows common vowel positions
- Three playing modes: UNISON (locked to voice I), FOLLOW (a delayed echo of
voice I), and ORBIT (an autonomous, ever-moving layer)
- Sleep / meditation timer: 3–30 minutes, gently fading out at a slower
tempo — ideal for bedtime or meditation

Headphones are recommended. This app does not collect or transmit any
personal data or performance data.