Its basically Doctrine MyOnly...I recall attending very traditional churches as a kid where guitars or anything that insinuated
and/or suggested Rock n Roll was not allowed...and not because there's anything biblical its just because they were self-righteous little pharisees about everything!
...Or maybe I mean Psalm 150 talks about all the things we should praise God with perhaps they were using that to say well It doesn't say Guitar or Drums or a Bass...granted those weren't even invented back then lol
Psalm 150
1 Praise the Lord
Praise God in his sanctuary;
praise him in his mighty heavens.
2 Praise him for his acts of power;
praise him for his surpassing greatness.
3 Praise him with the sounding of the trumpet,
praise him with the harp and lyre,
4 praise him with timbrel and dancing,
praise him with the strings and pipe,
5 praise him with the clash of cymbals,
praise him with resounding cymbals.
6 Let everything that has breath praise the Lord.
Praise the Lord.