Grammy Award for Best Musical Theater Album

The Grammy Award for Best Musical Theater Album has been awarded since 1959. The award is generally given to the album producer, principal vocalist(s), and the composer and lyricist if they have written a new score which comprises 51% or more playing time of the album.
Process.
Over the years, the qualifications for the individual nominees has fluctuated with principal artists, composers, and producers at one point being the sole eligible nominee, to the current (as of the 63rd Grammy Awards) standard which is as follows: "Award goes to the Album Producer(s) and Principal Vocalist(s) with significant contributing performance. The Lyricist(s) and Composer(s) of at least 51% of a new score are eligible for an award if they have written and/or composed a new score that comprises 51% or more playing time of the album. As many as four Principal Vocalist(s) may be awarded. If the winning recording is an "ensemble-driven" piece with no principal vocalist(s), the members of the ensemble may receive a Winners Certificate.
Years reflect the year in which the Grammy Awards were handed out, for music released in the previous year.
Name changes.
This award has had several minor name changes:
Shows with multiple wins and nominations.
Shows with multiple wins.
2 wins:
Shows with multiple nominations.
4 nominations
3 nominations:
2 nominations:
Individuals with multiple wins.
6 wins:
5 wins:
3 wins:
2 wins: