Sebastian Grochowicz, also known as Tocalta. Sebastian was born in the small town of Bartoszyce in the North East of Poland. His dad, at the time, having a business as a local DJ introduced him to the world of music. He instantly fell in love with the classic '4 on the floor' beats of artists such as Paul Van Dyke and Members Of Mayday.

When Sebastian was about 13 he decided to take up the challenge of creating his own music. After 6 years of hard work, His debut EP 'Regara/Apex' signed to Alter Ego Progressive, dropped. Never did he think his first release in the music industry would get him 2 places on his favourite EDM radio show Above & Beyond's Group Therapy. Not only that but his inspiration, Paul Van Dyke, featured 'Apex' on his radio show.