Eidus was a versatile session accompanist who recorded and performed in the classical, jazz, pop, rhythm, blues, and Latin genres.
He recorded with Perry Como, Coleman Hawkins, Lena Horne, Marian McPartland, Ruth Brown, Paul Desmond, Freddie Hubbard, Raymond Scott, Wes Montgomery, Patti Austin, Perez Prado, Frank Sinatra, Doris Day, Edgar Winter, Cal Tjader, Carmen McRae, and countless others over a career that spanned six decades.
In 1945, as part of the American Broadcasting Company's orchestra, he was a featured soloist in a New York recording of Paul Whiteman's re-orchestration[3] of George Gershwin's Rhapsody in Blue.
In the 1950s, he emerged as one of the most sought-after commercial violinists in New York, working in TV, radio, and films, on the concert stage, and in recording sessions.
His classical repertoire included works by Kodály, Beethoven, Elgar, Copland, de Falla, Henryk Wieniawski, Sibelius, Brahms, and others.