Yasar Guvenir is the son of Kanun Artist Osman Guvenir. Around 1940s he was in Radio Kids Club which was a great factor in training of lots of artists. His childhood, and teenage were spend in Ankara Radio.

He was the fan of Celal Ince. He was listening to Celal Ince from the radio studio while Celal Ince was singing. He tried to catch Celal Ince's voice tune in himself, and he was not hiding this.

He signed a contract for 10 record with the companies in 1940, but due to the lack of import of raw materials he managed to record only one.

He was effected by Fehmi Ege, but the most admired songs were "Yillarca Sabrettim (I was patient for years)", and "Sensiz Saadet Neymis (What is happines without you)"

He was very famous in his era, and worked for long years. He left music, since he was ill to death. He died January 10,1998.