What was the title of Prince's piano-and-vocal album released in 2002?

Prince’s piano-and-vocal album released in 2002 was One Nite Alone....

Released on May 14, 2002, One Nite Alone... is Prince’s 25th studio album. Its songs largely feature him singing while accompanying himself on piano, with only occasional additional instrumentation. The intimate sound contrasts with the larger, band-driven arrangements found on many of his earlier records.

The album was distributed to members of Prince’s NPG Music Club and was not sold through ordinary retail stores at the time. That unusual release strategy helped make original CD copies scarce. Several songs, including “One Nite Alone,” “U’re Gonna C Me,” and “A Case of U,” had first appeared through the club in 2001 before the album’s formal release.

Listeners sometimes confuse it with One Nite Alone... Live!, a separate live album issued later in 2002. Another distinctive track is Prince’s cover of Joni Mitchell’s “A Case of You,” retitled “A Case of U.” The studio album was recorded in 2001 at Paisley Park.