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You said that congregational singing was not encouraged. Pius says in an encyclical that bishops are to promote it.

You said the Mass was better without music - Pius says that:

A congregation that is devoutly present at the sacrifice, in which our Savior together with His children redeemed with His sacred blood sings the nuptial hymn of His immense love, cannot keep silent, for "song befits the lover" and, as the ancient saying has it, "he who sings well prays twice."

And if you want some saints and scholars, here are two:

Hence the use of music in the divine praises is a salutary institution, that the souls of the faint-hearted may be the more incited to devotion. Wherefore Augustine say (Confess. x, 33): "I am inclined to approve of the usage of singing in the church, that so by the delight of the ears the faint-hearted may rise to the feeling of devotion": and he says of himself (Confess. ix, 6): "I wept in Thy hymns and canticles, touched to the quick by the voices of Thy sweet-attuned Church." (ST II-II q. 91 a. 2)