moForte Guitar vs variStretch

The Classic moForte Guitar, introduced in 2012, is the first virtual guitar based on modeling the physics and performance techniques of the guitar. Because the moForte Guitar is modeled rather than based on playing back samples, the performance experience is uniquely expressive and interactive. Based on based on the Physical Modeling research of Dr. Julius O. Smith III of Stanford/CCRMA. Features include: - Strumming and PowerChord modes. - Modeled feedback and distortion like a real metal guitar. - A selection of models for popular types of electric guitars. - Recording and sharing of performances. - 9,500+ chords. - Powerful authoring tool for chart creation - supports custom chords and effect presets. - Modeled guitar articulations including: harmonics, pinch harmonics, slides, palm muting, string scraping, damping and auto-strum. - Fully programmable effects chain including: distortion, compression, wah, auto wah, 4-band parametric EQ, phaser, flanger, reverb and amplifier. iOS/iPadOS 13.7 or better

Concept: The app is a so-called time-stretch machine. The user can change the speed (0.5-2.0) of audio source in real-time using keyboard or slider at will. Usage: There are three play modes: 1) Tape (to change the both speed & pitch) 2) Phase Vocoder (to change the speed alone) 3) Thru (no processing) "Buffer Size" slider determines how long the data will be stored. "Buffer Clear" button will reset the buffer to be zero. System Requirements: AUv3 host