His music career started when he was born,literally... His father was a roadie for the band "The Moody blues"...

Argentine DJ & producer from the city of Mar del Plata

From an early age demonstrated his passion for music.

John Alfa's passion for music began when he was a child and spent hours listening to vinyls and CD's of all genres in his attic.

He is in the game for the fun and joy of sharing music and vibe. As music is tightly bond to atmosphere, place and time, the music varies from the most relaxed and chill sounds to some solid Techno beats! 

STX_, short for Syntax, has been around for a while. His very first CD ever was "Oxygen" from Jean Michael Jarre, which he bought when he was 9 years old. From there his love for electronic music was born.

“Creating Deep, Dreamy and Harmonic Vibes” That is what’s in the mind of Madman J while producing his tracks.

Prepare to be captivated by the musical dj/producer emerging from the enchanting city of Amersfoort.

In 2019 he released his first EP at Machinecontrol Records. Then two other labels came : D-Force Records and recently Libertas. Producing music is his greatest passion and he hope's to reach as many people as possible with it.

Mainly doing melodic techno or progessive house,he also enjoys experimenting with more energetic styles every now and then, while he enjoys listening to Enrico Sanguilano, Layton Giordani or Jay Lumen himself.