Estrin made the first recording of Alexander Scriabin's complete Twelve Etudes, Op.
Both recordings reflect the hallmarks of Estrin's style - a robust tone, formidable technique and an unusually large and sophisticated tonal palette.
More recent recordings included a suite by Brahms contemporary Joachim Raff and études by Anton Rubinstein.
Estrin was a professor at Hofstra University and private teacher on Long Island, where he resided until his death.
His students included John Mauceri, Billy Joel, Mo Fink, and Debbie Gibson.