"deep inside" is a composition (Ballad) of uliSoyka from 2005.
It was played & composed with tenor-recorder.
First recording of this tune you'll find on CD pt-x-008 Lila Lotus

Key in C

This ballad starts with an simple single-melody with chords and will grow until the end to a kind of hymne with lot of collective improvisation around the melody.

Link to listen: track 08 = deep inside