Peter,

There is a long history of working with just one mike. In Applacchia (sp?), most places string bands played that were amplified only had one mike. The New Lost City Ramblers copied this style at one time to have a more "traditional" presentation. So, imagine three guys, three vocals, one guitar, one fiddle, and one banjo. They were able to do it quite successfully. In the past few years, a couple of Country groups have tried this same approach looking for a more intimate sound (no need for more than one monitor). You're all close and cozy, too.

It requires a lot of choreography to do this, but it works well.

You're just one lone guy with a guitar, should be a piece of cake. As mentioned above, if you do this standing, you will need to hike up your instrument. Mike Seeger often looked like he was wearing his guitar for a bow tie. That might be a bit extreme. Then use the mike to "split the difference" between your mouth and your guitar.

My last gig was in a church coffeehouse. They had a new sound man and he had a terrible 60 cycle hum in his speakers. I was one of a half-dozen or so acts to go on. The first act was painful (buzz in the background). The next act was a poet. Someone from the church brought her the wireless mike from the church's sound system. Sounded just fine. The next was an acapella trio. They tried the sound system and it was again painful. I was next. I suggested to the emcee that I could use the wireless mike on a stand. Just me and my Guild 12-string. I took my own advice from above. I even finger picked with my bear fingers (I chew my nails, so the volume is minimal). I was told it sounded fine in the back row.

Good luck.

Roger in Baltimore