HN Showcase
Back to browse
GitHub Repository

Transpose any Spotify song to any key

2 starsC++

Transposify–change Spotify song key from your menubar for singing

by evanhu_·Jun 2, 2026·2 points·0 comments
Visit ProjectView on HN

AI Analysis

●●SolidCozyBig Brain

Core Audio process tap workaround for Spotify DRM is genuinely clever engineering.

Strengths
  • •Muted-when-tapped process tap captures Spotify audio without virtual devices
  • •Per-song key memory with menu bar UI that never shifts layout
  • •Local build avoids notarization and unidentified developer warnings
Weaknesses
  • •Requires macOS 14.4+, limiting audience to recent Mac users only
  • •Vocal reduction feature is experimental and works inconsistently
Category
Productivity
Target Audience

Singers and musicians who want to sing along to Spotify songs in their vocal range

Similar To

AnyTune · Capo · Amazing Slow Downer

Similar Projects

AI/ML●Mid

Custom ML model – if Spotify was instrumental

This ships a tidy, browsable library of on-demand vocal removals backed by a custom 'BiMamba UNet' trained on a curated ~500-song dataset — the interface actually feels built for music discovery rather than a bare demo. Don't expect SOTA separations (the author trained on one A40 for days and is honest about limits), but the vibe-coded dataset and integrated conversion pool make it a fun, useful tool for quickly grabbing instrumentals.

Niche GemShip It
day6
105mo ago