Skiffle, jugband, oldtime-- any perky, celebratory music for Lent?

Our Saturday night acoustic service's music always struggles to find the kind of music that works for us the rest of the church year. But Sundays within the Lenten period are actually NOT part of Lent-- they are sort of like a celebratory feast breaking Lent, each week, and the Sat. night service is the vigil of that Sunday AM "feast," so our service should anticipate and join the celebration.

So these "penitiential" seasons are a real stretch for us-- most of the available music is quite minor and dark! (We have the same problem in Advent.)

Any ideas? Especially ideas I can HEAR?

~Susan