Konstantin Raydovski (Raido) is a Bulgarian session guitarist and sound engineer. He began playing guitar at the age of 12 and was influenced by metal & rock bands like: Metallica, Nirvana, Slayer, Queen, Dream Theater, Def Leppard, and virtuoso guitarists like Joe Satriani, Steve Vai, Yngwie Malmsteen, Paul Guilbert, Jason Becker, Eddie Van Halen, and many more.
At the peak of Nu-Metal around 2001 Raido’s band Matakka, influenced by bands like Limp Bizkit, Deftones, and Incubus signed a record deal with Stars Records. They released five hit singles and debut album in 2003. Up to 2004 the band played in many concerts, festivals, TV and Radio programs and gigs throughout Bulgaria.
Raido is a graduate of Sofia Technical University as an electro and sound engineer and worked in local television and radio stations as sound engineer. From 2011 he was invited to work as chief sound engineer in one of the biggest and oldest studios in Bulgaria with history back from 1941 - Studio Two of the Bulgarian National Radio in which he works until present time. As guitarist, studio engineer and producer, he took part of many albums, songs and music of many Bulgarian and international projects, released several solo singles and continues to play and record guitar-oriented music.