Pen2Bow is a violin bow MIDI controller for iOS that lets you use the Apple Pencil to create bowing gestures for virtual instruments.
In the video above, Pen2Bow is demonstrated with SWAM Violin, a physical modeling virtual instrument.
It takes advantage of the sensors in the Apple Pencil and generates 4 continuous MIDI controllers: velocity, force, tilt and orientation. These can be assigned, for example, to expression, vibrato, bow pressure and position on the bridge to drive a virtual violin – or to any other parameter to drive synthesizers.
Pen2Bow recognizes linear as well as circular pencil motion. Circular motion enables the infinite extension of the bow that otherwise would be limited in length. This frees the user from constantly thinking about performing bow changes in order to prevent the bow from running out.
Pricing and Availability
Pen2Bow is available now for US $8.99.