Plectro vs Callback Freeverb

Make every guitar practice session count. Plectro listens while you play and turns your practice into useful feedback. See notes and chords in real time, tune with clear guidance, check the cleanliness of single notes, and build a lasting practice habit with session history, streaks, and weekly stats. PLAY WITH LIVE FEEDBACK - Identify notes and chords as you play - See whether a note is in tune, sharp, or flat - View exact cent deviation at supported skill levels - Get a live 0-100 tone score for single-note playing - Follow your elapsed practice time without leaving the session TRACK YOUR PRACTICE - Save completed practice sessions automatically after you end them - Review session duration, detected notes, and average tone score - Follow your current practice streak - See total practice time, weekly minutes, and session count - Visualize your last seven days of practice MADE FOR YOUR LEVEL Choose Beginner, Intermediate, or Advanced. Plectro adjusts the amount of detail shown and the chord vocabulary it recognizes, keeping the experience focused instead of overwhelming. PRIVATE BY DESIGN Audio analysis happens entirely on your iPhone. Your audio is never recorded, stored, or uploaded. Practice metrics stay locally on your device, and no account is required. Plectro is built for guitarists who already know what they want to practice and want a clearer view of their consistency, tuning, and tone. Tap Practice, start playing, and make your progress visible.

A classic algorithmic reverb effect based on the Freeverb algorithm by Jezar at Dreampoint. A Freeverb-style Schroeder/Moorer reverb based on the classic 8-comb + 4-allpass topology, with simplified controls and no stereo spread. This reverb creates lush, spacious ambience through a network of comb and allpass filters. Freeverb is widely used in electronic music production, ambient music, and sound design to add depth, space, and atmosphere to audio sources. The algorithm provides a smooth, musical reverb tail that works well on everything from vocals to synthesizers. This reverb only functions in mono and provides no stereo imaging, and the user can expect the same behavior as a classic Freeverb implementation otherwise.