Playback for non concert C instruments, like alto sax, does not playback the chords correctly transposed.

Playback for non concert C instruments, like alto sax, does not playback the chords correctly. It does not transpose the playback of the chords to the concert C key. But the melody notes play back transposed correctly. For example, in a chart for alto sax, an A note will play back correctly as C note, but an A chord plays back incorrectly as a an A chord.