Butterfly Trajectory is a polish progressive metal/post-metal band from Poznan, Poland.
To date they have released one ep which is currently available for free download from their Facebook page. Line-up:
Piotr Zurawski - Guitar/Vocals
Jakub Szygulski - Guitar
Konrad Maik - Bass
Piotr Jechura - Drums


Read more about Butterfly Trajectory on Last.fm.