Genius Plus vs Playlist Forge

Genius Plus brings smart music discovery to your local library. It analyzes tempo (BPM), key & chroma, spectral centroid, and energy to create a compact feature vector for each track. Using a high‑performance approximate nearest neighbor index (HNSW), it finds sonically similar songs and builds seamless playlists and radio stations; on your device, privately. Tune the “feel” of your playlists in Settings. Emphasize chroma/key, tempo, or energy; enable dimensionality reduction (PCA) and optional quantization to reduce storage. Batch‑process your library, browse song details, and start a radio stream from any seed track.

Playlist Forge is where you build playlists on Apple Music and share them with a community that actually listens. Pick any artist and Playlist Forge builds a playlist around them — just their songs, or a mix that trees out through similar artists. Lean toward the hits or dig for deep cuts, set the length and a release-year range, preview every track, then save it straight to your Apple Music library. BUILD Start from any artist. Choose "just this artist" or "artist + similar," pick Hits or Deep cuts, set the length and years, preview the songs, and save to your library in a tap. DISCOVER Browse playlists made by real people, add any of them to your library instantly, and follow the curators whose taste you trust. Likes, adds, and comments help the good stuff rise, and you can search across every playlist and person. MAKE IT TOGETHER Start a community playlist and let others add songs. Turn on song voting so the crowd thumbs each track up or down for fit. CHALLENGES Host your own themed challenge or enter someone else's, then let the community vote for a winner. Several can run at once, so there's always something to jump into. BOOST Give a playlist you're proud of a spotlight — pin it to the top of Discover for a day so everyone finds it. STAY IN THE LOOP Get notified when someone follows you, when your playlist hits a milestone, or when a new challenge drops. Playlist Forge is your library, your taste, together with everyone else's. Requires an Apple Music subscription to build and save playlists. Sign in with Apple to post, comment, follow, and vote. Boost and Host a Challenge are optional one-time in-app purchases. Your data is yours — delete your account and everything in it any time from your profile. Questions? 14nicholas.martin@gmail.com