Indeed we ought be joyful as Catholics, in this I agree. Especially when receiving our Lord in the Blessed Eucharist. However, this is an inward joy.
It is the exact same moment in time when he was crucified 2000 years ago. It is his death. period. The exact moment when Our Lady was at the foot of the cross weeping for her Son. When our God was killed. And it is happening right before our eyes. Would you feel compelled, with the Blessed Virgin to your side, to express your joy outwardly at that moment in time? I very much hope not.
This is not to say that we ought disobey the rubric of the OF and be silent. The point that I was originally tried to make was that the Mass is not a time for lovey-dovey emotions amongst the faithful. The music ought set the tone for the Sacrifice. Drums, guitars, and modern vocals do not do justice to the action taking place.
The definition of reverent is " showing or feeling deep and solemn respect ". Modern music is not appropriate to fulfill this role. Ever. Why would anyone want secular-sounding music at the Mass? It is because people forget too often that a death is taking place.