He was born in Unirea, Ocna-Mureş, Alba County, in a modest family with nine children. He began playing at 6 years old in the instrumental group composed of his father and brothers. Because Alexandru was the youngest, his father decided that he had to play at dulcimer, the violin being entrusted to Nicolae, the elder brother. In this formula, the Ţitruş family sang at weddings and various parties. But Alexandru loved the violin, and at 8 years old he stole the instrument of his brother and practiced hidden in the cemetery old songs heard from the elders.
At fourteen, he decided to go to Bucharest, where, by happy chance, manages to realize his first audio recording at Radio Bucharest. Then he returned in Ocna-Mureş and continued to sing with his father and brothers. Alexandru married at the age of eighteen.
For a while he sang with "Doina" Ensemble of the Army of Bucharest, led by general Dinu Stelian, then in 1963 he established in Cluj, where he was employed for a period in the Popular Music Orchestra of the State Philharmonic "Transylvania".
Being endowed with an amazing talent, Alexander Ţitruş had collaborations with famous conductors including Radu Simion, Toni Iordache, and with renowned orchestras, with which recorded remarkable achievements in all concerts at home and abroad. He recorded four LP and a MC at Electrecord.
Due to his unique style of interpretation, Alexandru Ţitruş was considered the greatest violin player of the folklore of Mureş area and Transylvania. He died prematurely, at only 67 years.