I think it is not appropriate. We are not in a concert hall or casually listening to music at home, rather, we are in a sacred space—the church—where the Blessed Sacrament is present. Our external behavior should reflect the sacredness of the environment.
Using recorded music from technical instruments in the presence of the Blessed Sacrament or during Holy Mass may not be fitting. The music in this context should ideally be live, allowing the congregation to actively participate. If live instruments are not available, singing without them is a viable option. It's important to maintain a sense of reverence and observe the sanctity of the place.
Dear visitors of Gloria Dei and all who have already written or who will write a personal message to me. I am grateful for your attention, your kindness, for your spiritual support and especially for your sacrifices and prayers for me. God may reward you!