Irene found this video and sent it over to me. Thanks-a-million Irene.
If you watch starting around 8:59 to around 10:17 you will see Maria-Teresa playing guitar and singing. After she sings the commentators evaluate her singing for a few seconds and then they show Papp (aka Henri) and Maria-Teresa playing the piano together.
Cute stuff I thought I'd share it with you all.