In LOLC, the musicians in the laptop orchestra use a textual performance interface, developed specifically for this piece, to create and share rhythmic motives based on a collection of recorded sounds. The environment encourages musicians to share their code with each other, developing an improvisational conversation over time as material is looped, borrowed, and transformed. LOLC is supported by a grant from the National Science Foundation as part of a larger research project on musical improvisation in performance and education (NSF CreativeIT #0855758).