JamEngine vs Metro

JamEngine is a real-time music generation app that puts a full backing band in your pocket. Choose from 15 musical styles, pick your key and tempo, and JamEngine instantly creates authentic, genre-appropriate arrangements, complete with MIDI drums, bass, guitar, piano, brass, and woodwind instruments. Whether you're a guitarist looking for a rhythm section to practice over, a songwriter sketching out chord progressions, a jazz player working on improvisation, or a producer hunting for inspiration, JamEngine gives you a responsive, endlessly variable musical companion. 15 STYLES TO CHOOSE FROM Rock · Hard Rock · Classic Rock · Metal · Pop · Ballad · Blues · Slow Blues · Jazz Swing · Jazz Ballad · Funk · Bossa Nova · Reggae · Country · Lo-fi Each style comes with genre-authentic drum patterns, bass lines, guitar voicings, keyboard parts, and horn arrangements. 12 INSTRUMENTS Build your arrangement from a roster of 12 instruments, each with realistic General MIDI sounds: • Drums · Bass · Electric Guitar · Acoustic Guitar • Piano · Organ · Strings • Trumpet · Trombone · Alto Sax · Tenor Sax · Clarinet Mix and match any combination. Each instrument has independent volume, mute, solo, pan, density and 11 variation levels to control the complexity and character of its part. SMART CHORD PROGRESSIONS Build chord progressions using the grid editor or the interactive Circle of Fifths, a visual tool that highlights diatonic chords in your selected key, so you can see at a glance which chords belong together. Start from scratch, or load one of the built-in templates: I-IV-V, I-V-vi-IV, ii-V-I, 12-Bar Blues, Jazz Turnaround, and more. Choose from 18 chord types including major, minor, seventh, diminished, augmented, sus, and extended chords. FLEXIBLE TIME & KEY Play in any of 7 time signatures, 2/4, 3/4, 4/4, 5/4, 6/8, 7/8, and 12/8, with BPM from 40 to 300. Tap tempo to match a song. Select any of the 12 keys in major or minor. Change key mid-session and your chord progression transposes automatically to preserve harmonic relationships. VARIATION RANDOMIZER Enable the variation randomizer and JamEngine will shuffle instrument variations at musically appropriate boundaries, every 4 or 8 bars, keeping your practice sessions fresh and unpredictable without you lifting a finger. EXPORT YOUR SESSIONS Capture your jam as a WAV, M4A, or multitrack MIDI file. Use export to bring your arrangements into your DAW for further production. SONGBOOK Save your favorite sessions, style, key, tempo, chord progression, and instrument setup to your personal Songbook. Load them instantly to pick up where you left off. CUSTOM SOUNDFONTS Import your own SF2 SoundFont files to customize the sound of every instrument. FREE TO START, PRO TO UNLOCK EVERYTHING JamEngine is free with 4 styles (Rock, Metal, Jazz Swing, Lo-fi), 3 song saves, and all playback features. Upgrade to JamEngine Pro for a one-time purchase to unlock all 15 styles, unlimited song saves, and full export capabilities.

Metronome with setlists, a tempo trainer and practice stats. Built for lessons, rehearsals and gigs: no account, no ads, no clutter. METRONOME · 40–300 BPM dial · Tap Tempo: find any tempo by tapping · Fine control with −1 / +1 (press and hold) and ÷2 / ×2 · Simple and compound meters: 2/4, 3/4, 4/4, 5/4, 6/4, 7/4, 2/2, 3/2, 3/8, 6/8, 9/8 and 12/8 · 5/8 and 7/8 amalgams · Flamenco palos: soleá, bulería, alegrías, seguiriya, tangos, rumba, fandango and sevillanas, each with its accents and reference tempo · Core subdivisions: quarters, eighths, triplets and sixteenths · With Pro: swing, duplets, quintuplets, sextuplets and muted/syncopated variants · Accent, normal or muted on any beat, with one tap · Count-in from 0 to 8 beats · Visual flash on the downbeat · Keeps playing with the screen locked and other apps in the foreground SETLISTS · Each song with its BPM, meter and subdivision · Search, reorder and switch songs on stage with one tap · An active setlist always at hand · Free version: up to 2 setlists. Unlimited with Pro TRAINER (PRO) · Step-by-step tempo increases: start BPM, target and step size · Each step lasts as many bars as you choose · Count-in before it starts, plus loop mode · Total training progress in view STATS · Practice time tracked automatically · Day streak and levels from Beginner to Diamond · Session timer and all-time total SETTINGS · Four click packs: drumsticks, wood, digital and handclaps · Volume, haptics, flash and sound with the silent switch · Automatic, light or dark theme, and text size · Spanish and English · Daily practice reminder METRO PRO · One-time lifetime purchase or yearly plan · Unlocks the trainer, advanced subdivisions and unlimited setlists · Restore your purchase anytime PRIVACY · No account, no ads · Your setlists and stats stay on your device · Purchases are handled by RevenueCat with an anonymous identifier; no ad profile and no cross-app tracking · The app checks for updates through Expo Updates Set the tempo and play.