Those looking to study the rare artistic phenomenon of two musicals based on the same source material being produced in the same city at the same time have only a few days left to see Manhattan Theatre Club's The Wild Party.

Andrew Lippa's musical version of the 1928 poem by Joseph Moncure March, running concurrently with Michael John LaChiusa's Broadway version of the same title (now in previews), closes April 9 at MTC's Stage I. As of April 6, there were tickets left for all six of the final weekend's performances, Thursday-Sunday, but that is likely to change as theatre buffs realize time is running short to compare and contrast.

The MTC Wild Party will be preserved on disc from RCA. Lippa will produce a 21-track cast album (not the entire score, but most of it) to be recorded April 11.

The April 9 close date represents a short extension for the show at the resident, nonprofit MTC. There was talk a move to Broadway, but that transfer did not transpire, leaving The Public's Wild Party alone on Broadway (opening April 13).

* Composer-lyricist-librettist Lippa's musical opened to mixed reviews Feb. 24. Brian d'Arcy James, Julia Murney, Taye Diggs and Idina Menzel star in the pop-driven MTC tuner, set at a debauched Jazz Age party populated by corrupt vaudevillians, dancers, a pugilist, a predatory lesbian, songwriters and a mysterious playboy. Gabriel Barre directs, with Mark Dendy as choreographer.

For tickets and information on MTC's Wild Party call (212) 581-1212.