I've been playing Angel Band by Ralph Stanley a lot recently. The verse ends on the I chord and the chorus starts on the V. I'd love to find a good transition chord between the two, something that pulls from the I to the V the way the I7 pulls to the IV.
Any suggestions? The tricky part is that the chord can't sound out of place in a traditional American (folk/old time/bluegrass) context, so fancy jazzy chords are right out (the Imaj7 walks right up to that line).
Any other suggestions for good transition chords?