Typically speaking, Anton Bruckner's 9th Symphony in 3 movements is an "unfinished" work, given that the composer didn't live long enough to complete the 4th movement. However, by listening to the symphony one is not left with any sense of incompleteness! Indeed, the Adagio, as a final movement, is by no means less conclusive than, say, the closing Adagio in Mahler's own 9th...
I. Feierlich, misterioso
II. Scherzo. Bewegt, lebhaft - Trio. Schnell - Scherzo
One of my favorite Mahler symphonies, played by the Brigham Young University Philharmonic. Perhaps a very personal choice of interpretation, given that BYU was the school where I studied (and taught)...