During in-concert band intros, Springsteen often referred to him as "Phantom," sometimes said to be because of an incident in Asbury Park in the 1960s where Federici evaded a police crackdown that resulted in the arrest of numerous others. Federici attended high school at Hunterdon Central High School in New Jersey.<3> When he, along with Vini Lopez started the band Child at the end of the 1960s, their choice for a singer fell on Bruce Springsteen;<2> Federici also joined Springsteen in other early efforts such as Steel Mill.
Federici's organ fills are a key component in the E Street sound, and sometimes take on a more prominent role, such as on the hit "Hungry Heart". His use of the electronic glockenspiel is also an easily recognized E Street element; he has since used electronic keyboards to simulate the glockenspiel sound. Another notable performance is his accordion solo on "4th of July, Asbury Park (Sandy)." It was reported in an interview in Backstreets magazine that Federici did not have the best working relationship while playing with pianist David Sancious in the early days of the E Street Band; Sancious would comment on Federici's parts, constantly telling him what to play and what not to play.
http://en.wikipedia.org/wiki/Danny_FedericiRest in Peace