We're coming out in April, and would be grateful to know whether the music bars (Jailhouse / Roundup / Bradys etc) are likely to be open, or if there are any other live music venues. Thanks for any help

Yes by Easter everything should be up and running.

Where in Surrey do you live?

Thanks Bruce. We're planning to do a couple of trips at the begining and near the end of the month (with a tennis tour) and its good to know that the place will be rocking (ish).
We live in Godalming, and recently bought a place in Vale de Milho.