Lubin's professional career spanned over 40 years, as a composer and conductor in many Broadway productions and recordings, the concert stage, in radio, television and motion pictures.

He left Irving Place to become one of the youngest musical directors in the foreign department of the Aeolian, Vocalian, and later, the Brunswick Phonograph Company.

[2] Lubin composed and arranged for numerous productions including The Eternal Mother in 1928 and Max Gordon's Making Mary in 1932.

When Loretta Young decided to take a recess from her motion picture career and star in her own television series, Lubin was selected as musical director.

Lubin is perhaps best known for the music he created for the sci-fi television programs, One Step Beyond and The Outer Limits, where he pioneered an effective combination of orchestra, theremin and female voice.