|What guitars were used for the chord banks?|
There are two major banks of chords in Acoustic Legends HD, one for six-string guitar and one for twelve-string.
The six-string chords were sampled using the Taylor 914. The twelve-string chords were sampled using the Taylor 955.
If you want to sequence using a mixture of the chord banks and individual notes, you should use the corresponding individual note patches, which are provided in the respective folders elsewhere in the library.