Rifflet vs Callback Freeverb

Rifflet turns a short music idea into a riff you can play. Describe a tiny tune in a sentence, get a four-bar riff, then copy it on a piano, guitar or ukulele view with local playback. Make • Type an idea such as "warm lo-fi piano loop" and get a riff with its notes, chords and tempo. • Pick Piano, Guitar or Ukulele and follow the notes as keys or tab. • Make it sadder, then undo, and save or share the riff card. Practice • The next key glows and the lesson moves with you. Loop a phrase for four bars. • Take Coach measures your pace and steadiness from your own pass and gives one short tip. • Ask Coach answers questions about the chord and notes in front of you. • Hand page turns: an open palm toward the front camera moves to the next step. Private by design • No account, no login, no cloud AI key. • Notes, tempo and every number come from the app. On iPhone with Apple Intelligence, the on-device model only chooses the words of a tip. • Camera video stays on your iPhone. Rifflet collects no data. Widgets and a Live Activity keep your current riff one tap away.

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.