JDS Labs Core DSP vs Changes

JDS Labs Core is the companion app for JDS Labs Element IV, a high-fidelity headphone amplifier and DAC: - Control the 12-band parametric EQ - Access 8,000+ headphone presets - Adjustable Crossfeed, Loudness, Soundstage, Balance, and Volume - Store and manage separate EQ profiles for headphones and speakers - Configure device settings Requires JDS Labs Element IV connected via USB. Core is free for all Element IV owners. ** Requires latest Element IV firmware v1.7.3+ **

Record a song, or import one you already recorded, including voice memos. Changes listens and writes the Nashville Number chart. It is a first draft, and it says so: the bars it is unsure of are marked, and you fix any chord with a tap. Then transpose it, print it for the band, or send it to Logic Pro so the Session Players follow the changes. Number-chart apps make you type every chord. Audio chord detectors hand you chords to learn, not a chart to record from. Changes does the actual job, for original and unpublished songs the catalog tools cannot look up: play it in, get the chart, fix it in a tap, and hand it off to Logic Pro. HOW IT WORKS • Record, or import audio you already have: a voice memo, a rehearsal take, or a quick pass on guitar or piano. Rough and lo-fi is fine; that is what it is built for. • Changes hears the key and structure on your device, then works out the changes and lays them out as a clean Nashville Number chart. • The bars it wasn't sure about are marked. Tap any chord to pick what you actually played. • Tap the key to transpose the whole chart. Size the numbers for a music stand. • Play along with a marker that follows the chart. YOUR LIBRARY Search by song name, lyrics or key. Keep several takes of one song together. Group songs into setlists for the gig. Deleted songs stay in Recently Deleted for 30 days. HAND IT OFF TO LOGIC PRO Export a MIDI file and open it in Logic Pro, then use Analyze chords and Chord Track so the Session Players follow the changes. On the Mac it opens in Logic in one click. Export a PDF for the band. PRIVATE BY DESIGN Everything runs on your device: Apple's on-device Music Understanding, our chord analysis, and on-device lyric transcription. Your audio is never uploaded. No accounts, no analytics, no tracking. FREE TO TRY Record, chart, view, play along, transpose, organize your library, and save as many songs as you like, all free. Changes Pro adds MIDI export to Logic Pro, PDF chart export, and Enhance, a one-tap on-device master for the takes you keep. Buy it once, it's yours. Requires iOS 27 or macOS 27 (Apple's on-device Music Understanding ships with the version 27 systems). Built for songwriters and artists cutting demos, producers, session players and worship music directors.