1670 AM Allston Brighton Free Radio, part15 and webcasting at www-abfreeradio-org (Allston Brighton is a Boston neighborhood). You obviously can't get 1670 even in every part of Allston/Brighton. However, due to impending webcasting fees, we're making a push to broadcast local bands/performances of any kind. Many of these will be unsigned acts, or from small labels. We made an arrangement for use of a space and a link to our studio. We'll be way far from audiophile quality, as our budget is what people donate. However, you'll hear more unique live performances from us. The live music department has just been formed, so give us some time to get the schedule up. However, some shows have already begun having acoustic artists in studio.
Furthermore, there's no subsitute to actually attending a live performance. If you can't find shows of your liking in NH, check listings for shows in Cambridge/Boston. They may be worth the trip. I travel from Boston to Providence or NYC for some shows.