L. was born on 5 March 1904 in New York, America. His father was a musician in the Yiddish theatre. He completed a public school and high school and learned Yiddish with a rabbi.

At the age of thirteen he acted part-time in the orchestras of Yiddish theatres, two years later becoming a steady piano accompanist with Gabel in his theatre, and later crossed over to other Yiddish theatres where he composed music for the songs that were sung in melodramas. Later L. composed the music for the operettas "Fremde kleyder" by L. Freiman and "Der freylekher khazan" by Moshe Richter (both staged by Ludwig Satz).

During the last years L. further was active in the orchestras of Yiddish theatres and wrote compositions for individual songs, of which several were published. The most popular of these was "Di eybike mama", sung by Lucy German.

On 10 September 1931 at the Selvin Theatre there was staged in English Boris Thomashefsky's operetta "Di khznte" under the name of "The Singing Rabbi" with L.'s and Joseph Rumshinsky's music.
 

M. E.