PianoML
Piano · Practice · Progress
What it does
Both a practice tool and a large score library, all fully open-source and web-accessible. Especially appealing for self-taught pianists, teachers assigning repertoire, and anyone wanting a no-cost, privacy-friendly alternative, feature optical music recognition, automatic grading and more.
Does the same job
all alternatives →- PTPiano Trainer – Learn piano scales, chords and more using MIDI2025 · github.com · ▲203
- PTPiano Trainer – Learn piano scales, chords and more using MIDI2022 · github.com · ▲159
- IMI made a MIDI tool to teach me piano2022 · github.com · ▲94
- APA piano chord reference tool2022 · pianochord.io · ▲206
- HWHarmopark – Web tool to visually build chords and progressions2019 · harmopark.app · ▲153

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Launched alongside, May 2026
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Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai


- NW
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
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- FM
Dev tools · May 2026 · github.com