Jaroslaw Bochenski, performing as LOS (Laboratory of Sound), is a passionate electronic music hobbyist and producer from Nowy Sącz, Poland. Inspired by the 80s/90s dance scene and the legendary RMF-FM show "Technikum Mechanizacji Muzyki," Jaroslaw’s journey began in 1997 through voluntary DJing at local community and school events.

For Jaroslaw, music has always been a creative outlet rather than a commercial pursuit. Between 1999 and 2005, he focused on hobbyist production, crafting tracks such as Electronic Music (2000), Searching for Love (2002), and FREEDOM (2005).

After a long hiatus, he returned to his roots in 2025. Today, the Laboratory of Sound is a pure passion project, dedicated to sharing the Trance and Electronic Dance sounds that defined a generation. This is a non-commercial space for sound exploration and the love of the beat.