Two new features in one session: three pre-recorded WAV click sounds you can pick alongside the existing synth click, and press-and-hold haptic feedback on the main tempo circle. Plus a long debugging detour that turned out to be a lazy-init bug in the native engine.
Eight items from the first round of beta feedback, in one focused day. A subtle Compose race condition that broke Feel-the-Beat, a rename of “Special Entry” to “Break”, per-playlist rename via a 3-dot overflow menu, an in-library New Song affordance, a system-nav clipping fix, a restructured top-bar menu, and the first version of an Edit Sound screen with live frequency and tone control plumbed all the way down to the Oboe callback.
The longest session so far. Song and special entry editing, a complete redesign of the swipe gestures, multiple playlist support, JSON persistence, and a jitter measurement that confirms the audio engine is production-ready.
Today had three acts: sketching the full UI concept, building a foreground service, and solving an audio/visual sync problem that turned out to require a C++ fix.
The metronome clicks on a real Android device. Here’s how Claude handled the architecture, Gemini wrote the code, and I directed traffic between them.