Choral Lab vs ARPJAM Player

Choral Lab brings the art of four-part Bach chorale writing to your iPhone. Whether you're a composer, music student, or theory enthusiast, explore one of the most refined harmonic styles in Western music. Harmonize your melodies. Draw a soprano line on the interactive piano roll and watch Choral Lab instantly generate alto, tenor, and bass voices following authentic Bach voice-leading rules — avoiding parallel fifths and octaves, resolving leading tones, and building natural cadences. Browse 410 Bach chorales. Explore the complete corpus of J.S. Bach's four-part chorales with full score display, real-time chord analysis, and playback with rich choir sounds. Two ways to read the music. Switch between a traditional four-part score view with proper notation and clefs, or a piano roll view to see the voice leading clearly laid out across time. Mute individual voices to focus on any single part or study how voices interact. Generate original chorales. Let the app create complete chorales from scratch in any key — major or minor — with realistic harmonic progressions, passing tones, and Picardy thirds. Study chord analysis. Follow along with real-time Roman numeral chord labels as the music plays. Features: • Interactive soprano piano roll with tie support • Automatic SATB harmonization in Bach style • Library of 410 J.S. Bach chorales • Score view with Bravura music engraving font • Piano roll view with per-voice muting • Real-time chord analysis • Choir, piano, and organ sounds • MIDI export • AUv3 plugin — works in GarageBand, AUM and other hosts • One-tap host tempo sync in plugin mode • MIDI output per voice (soprano, alto, tenor, bass on channels 1–4)

ARPJAM Player is a device for leaving your JAMs running. Line up the JAMs you want to hear and give each one a play time. When the time is up it fades out on its own and hands over to the next one. Nothing else to do. ■ For as long as you like Play times run from one minute to twelve hours, set on a reel. Leave one JAM running all afternoon, or cut them short and keep moving. It is built for the kind of listening that lasts a whole opening shift. ■ Matched loudness JAMs vary in level. Each one is measured once when you add it, and matched on playback — the loud ones come down, the quiet ones come up. No sudden jump when the next one starts. Nothing chases the level while the music plays, so the volume never moves mid-performance. ■ With the screen off Background playback is supported. Lock the screen and it keeps going. Play, pause and skip from the Lock Screen or Control Center. ■ JAM Library Open the JAM Library from inside the app and add published JAMs directly. Browse by genre and see the artist, the notes, the BPM and the key. Official JAMs and submitted JAMs sit side by side. You can also import .arpjam files stored on your device, including files written by the earlier ARPJAM. ■ It never plays the same way twice The ARPJAM engine is not playing back a fixed score. It builds the performance as it goes, following rules. The same JAM sounds different every time you play it, so it does not become a loop you get tired of — even after hours. Same engine as ARPJAM Studio. ■ Made for · Saunas, spas, treatment rooms · Cafes, shops, galleries · Working, studying, winding down · Exhibitions and installations — — ARPJAM Player does not create JAMs. To make them, use ARPJAM Studio.