Alternative to dj at your wedding?

Dear all,

I have recently asked my girlfriend to marry me (luckily she said yes) and now the fun part starts: the wedding preparations!
We have been thinking a lot about how to schedule the day. Most weddings in Belgium (where we are from) are like this:
- you first have a reception of about 1.5 hours.
- afterwards you have a dinner of about 2.5 hours. This is the most intimate and hence smallest group.
- finally, all friends that were not invited to dinner but that you do want to be part of your wedding, join for the 'party', where a DJ blasts loud music for 4-6 hours.
Now, me and my fiancee are not that much into partying into the wee hours of the night. That ship has sailed. Nevertheless, we do not want to finish our wedding after the dessert. So we are looking for some kind of performance/act as alternative to the dance party with a DJ. This could be something like a saxophone player or a coverband, or... (duration: approximately 2 hours).
Unfortunately, our experience with these kind of acts is very limited and so is our creativity. But luckily I've got you guys! What acts or performances would you recommend? We are looking for more of a 'loungy/afterwork' vibe where people can enjoy the performance, but where at the same time people are still able to have a chat with each other.

Your input is extremely appreciated, as we are looking to (here comes the cliché) make this the most beautiful day of our life.

Thank you all in advance,

Willem