Altarab - الطرب

Altarab — a complete Arabic music academy on your device. الطرب
                                                                                
  12 tools, built around the maqam tradition and quarter-tone tuning that       
  defines Arabic music. Designed for oud players, ney players, qanun players,   
  vocalists, and anyone learning Arabic music theory in earnest.                
                                                            
  TOOLS                                                                         
   
  • Tuner — cent-accurate microtonal tuner with the 24-TET grid that Arabic     
  music actually uses (Yegah, Rast, Sikah, Awj, etc.). Includes a pitch-pipe
  reference tone for tuning by ear.                                             
  • Metronome — sample-accurate AudioContext scheduler, seven time signatures
  (2/4 through 9/8), and a tap-tempo button.                                    
  • Iqaa — a percussion lab with eight Arabic drums (darbuka, riq, tabla, duff,
  khashaba, sagat, bendir, davul). Pick a drum, pick a rhythm from the 43-cycle 
  library, watch it play.                                   
  • Iqaa Trainer — tap-along scoring for those 43 rhythmic cycles, with         
  tempo-ramp mode that lifts your BPM as you nail the cycle and a               
  build-your-own-iqaa builder.
  • Maqam Explorer — all 73 maqamat with structure, branches, modulation paths, 
  and a custom-maqam builder.                                                   
  • Maqam Comparison — side-by-side intervals and tuning comparison between any
  two maqamat.                                                                  
  • Solfege — sight-singing exercises with quarter-tone awareness.
  • Oud Simulator — Iraqi-floating-bridge oud with maqam-aware fingering and    
  Karplus-Strong physical modeling.                                             
  • Scores — sheet-music library with synchronized OSMD playback, transpose, and
   loop.                                                                        
  • Composer — 32-step grid with maqam-aware engine, MusicXML export, on-device
  • Songs — bundled Arabic MIDI library with piano-roll playback.               
  • Karaoke — stem-separated mix-along for selected Arabic repertoire.
  • Follow Me — play-along trainer with synchronized score and audio, tempo     
  0.5×–1.5×.                                                                    
                                                                                
  OFFLINE-FIRST                                                                 
                                                                                
  Every purchased tool keeps working with no internet connection. Sample data
  ships inside the app, and entitlements live on your device.                   
                                                             
  ONE-TIME UNLOCKS                                                              
                                                            
  Each tool is a one-time unlock. The Tuner and the Metronome are free forever.
  Other tools include a 60-second preview so you can see what you're getting    
  before you buy.                                                           
                                                                                
  QUARTER-TONE NATIVE                                       
                                                                                
  Where Western music apps round to the nearest semitone, Altarab tracks pitches
   at one-cent precision and renders quarter-tone accidentals throughout —      
  half-flats and half-sharps in scores, MusicXML export, and the Composer.