To be announced, To be confirmed, and To be determined (often abbreviated as TBA, TBC, and TBD, respectively) are placeholder terms used very broadly to indicate that although something is scheduled or anticipated to happen, a particular aspect of that thing remains to be arranged. Although the phrases are often used interchangeably, they have subtle differences. "To be announced" implies that the aspect so designated may have already been determined, but is not yet suitable for public announcement. "To be confirmed" suggests that a decision has been made but awaits confirmation, although it is also used to indicate that the aspect to be scheduled remains open. Other similar phrases sometimes used to convey the same meaning, and using the same abbreviations, include To be ascertained, To be arranged, To be advised, To be adjudicated, and To be decided.

Use of the abbreviation "TBA" is formally reported in a reference work at least as early as 1955, and "TBD" is similarly reported as early as 1967.

Jeffrey E. "Jeff" Cardoni (born January 1970) is an American composer. He is a multi-instrumentalist who studied classical piano before playing drums and guitar in numerous bands, including a brief stint with the rock band Alien Crime Syndicate. After graduating James M. Coughlin High School, Cardoni studied between 1988 and 1991 engineering at Pennsylvania State University. Cardoni is best known for his work on television projects such as CSI: Miami,The Defenders, The League, and film scores, such as Just Friends, Firehouse Dog, Miss March, Harold & Kumar Escape from Guantanamo Bay, and many others. Cardoni also did the music for Open Season 3.

Cardoni was born Jeffrey E. Cardoni in January 1970. Right now, he lives in Los Angeles, California.

Cardoni was nominated in 2006 for a Silver Ariel Award for Best Original Score.^{[unreliable source?]}