Selby
One that pleases the audience ( including the performer as part of the audience). This may seem a trite answer but too many performers sing what they want to sing/ play without thinking about this. For too many its a ' look how clever I am ' rather than what will work where. Selby - I'm in the danger zone of being negative - but different audiences will like different things.
Were doing a concert for a church group near Xmas. ( not our usual audience). We have some easy carols sorted and some xmas songs - all for joining in - and I'll add a few jolly tunes. We have a few word sheets as well. If anyone has done anything similar I'd be pleased to hear their suggestions.
FloraG