Ad Hoc Orquestra is a project based on collective improvisation, creating music in real time and promoting the encounter between multiple artists. Exceptio Regulam Probat was created and recorded live in 2016 by Caio Plínio; Tiago Eiras; Vicente França; Rafael Orlandi; P.C. Guimarães; João Gabriel Machala; Lucas Freitas; William Alves; André Orandi; Antônio Vinícius; Wilian Rosa; Nara Torrres; Rafael Nunes; Conducted by Guilherme Peluci; Recorded by Lucas Mortimer. Recorded live in 2016.