MOTUnation.com

I figured out a way to extend the ranges of sounds in my Garritan libraries. For instance, the banjo sample only goes down to a D, but a long neck five string in C tuning, with no capo goes down to an A. And sometimes guitarists will occasionally tune their 6th string down to a D. Some basses go as low as a C or B. And I was using a bass harmonica, and who even knows what the range of that instrument is, but I wanted some notes lower than were available in the sample. So I set the pitch bend range to 12, pull the bend wheel all the way down, and play an octave higher. Cool, huh?

Many VIs will let you extend the range of the instruments w/o using the pitch wheel. Not sure about Aria (Garritan) but extending instrument range can often be a matter of digging a little deeper in the GUI of the VI.

Necessity, the Mother of Invention.

Garritan has a users support board.
https://makemusic.zendesk.com/hc/en-us/ ... s#garritan

DP 10 can drop the audio easily if you need the occasional extra low note.

If all else fails $29 gets you this. You might find it useful anyway.
http://www.ircamlab.com/products/p1680-TS2/?goback=2