Cy,

All of the pitch to MIDI solutions for guitar I mentioned were polyphonic, i.e., six strings. These are expensive as noted and there doesn't seem to be a way around that, unless you are willing to research some legacy hardware, then exercise the patience to acquire it. I think there is or was a Roland guitar synth device that did PTM and was less than the VG-99 at $1300-1500 USD. I'll continue to look for that just because I'm interested in staying current. I had high hopes for the Axon 50 and 100, but apparently the manufacturer, Terratec, has called it quits.

However, there seem to be a number of quite cost-effective (read: under $100 USD) monophonic approaches in both hardware and software. This is adequate if you are just playing single-note lines such as melodies or bass. I believe you have to have hardware to do it in real time.

Signed,

Keepin' that dead horse beaten cool

"My primary musical instrument is the personal computer."