Svetozar Rangelov was born in Sofia. He graduated from National Academy of Music in 1995 where his vocal teacher was prof. Asen Selimski.
During his education Svetozar Rangelov get the first prise at the National Singing Contest Hristo Brambarov in November 1995 and also was one of the participant in Cardiff - Singer of the World in June 1995.
He made his debut in April 1995 as Don Basilio/Il Barbiere di Siviglia – G. Rossini/ at the National Opera House – Sofia and since February 1996 he has became a part of it.
Svetozar Rangelov has performed many roles at the National Opera House including Alvize Badoero - /La Gioconda – A.Ponkieli/, Brogni /La Juive – J.Halevy/, Cacico /Il Guarani – A.C.Gomes/, Coline /La Boheme – G. Puccini/, Don Basilio /Il Barbiere di Siviglia – G. Rossini/, Ferando /Il Trovatore – G.Verdi/, Filippo II /Don Carlo – G.Verdi/, Gaiolo /Foska – A.C.Gomes, Publio /La Clemenza di Tito – W.A.Mozart/, Timur /Turandot – G.Puccini/, Konchak /Kniaz Igor – Borodin/, Mephistofel /Faust – Sh.Gounod/.
His international engagements included Gaiolo /Foska – A.C.Gomes/ in May 1998 – Sao Paolo, Coline /La Boheme – G. Puccini/ in October 1998 – Toulon, Il Comandore /Don Giovanni – W.A. Mozart/ in March 1999 – Opera Comique-Paris, Don Basilio /Il Barbiere di Siviglia – G. Rossini/ in June 1999 – Theatre de Bordeaux, Padre Guardiano/La Forza del Destino - G.Verdi/ in April 2000 – Grand theatre du Limoges, Ramphis /Aida – G.Verdi/ in November 2000 – Bruxell, Timur /Turandot – G.Puccini/ in December 2000 – Tokio,
Requiem – G.Verdi in January 2001 – Dijon, Gremin /E.Onegin – Tchaikovsky/ in May 2001 – Teatro del Opera Roma , Policeman /Lady Macbet de Mzensk – D.Shostakovich/ in September 2001 – Grand Theater de Geneve, Orovezo /Norma – V.Belini/ and Jacopo Fiesco /Simon Boccanegra – G.Verdi in season 2001 - 2002 – Grand Theatre de Limoges,
Mephistofel /Faust – Sh.Gounod/ and Zaccaria /Nabucco – G.Verdi/ in season 2002 - 2003 Grand Theatre de Limoges, Coline /La Boheme – G. Puccini/ and Filippo II - /Don Carlo – G.Verdi/ in November 2002 – Japan. Mephistofel /Faust-Sh.Gounod/ in Sau Paolo- 2005, Festival de Solothurn in Suisse 2006- Faust ,Nabucco,Il Barbiere di Siviglia, Il Comendatore in Padova Veneto -2007 etc. Nabucco – Bruxelles 2008-2009