Alexander Ehrenreich was born in Vienna in 1973, the son of jazz musician and big band leader Teddy Ehrenreich.  Having had the great fortune to be exposed to live jazz in his younger years, he developed an early interest in Jazz and its related styles such as Jazz Rock, Funk, Blues, Soul, etc. even before he began teaching himself to play the saxophone in the age of 14. 
During his studies at the university Alex Ehrenreich produced his first recordings (all under the label of CITY-Park Records) so as to present and document his constant high standard, versatile musical interests with numerous famed side-men of the Austrian Jazz and Rock/Pop scene.  Since 1996 he is the leader of his own Hard Bop quintet, playing in the most important jazzclubs all over Austria.
Since 2012 he also leads the Alex Ehrenreich Big Band (before known as Teddy Ehrenreich Big Band), which plays the original charts of Woody Herman and all the other great big bands from the golden swing era. Alexander Ehrenreich, also teaches clarinet and saxophone for young and old.