I see you have abandoned right and wrong for appropriate. However the statement above is false. Jesus Christ said:
John 4:24. God is a Spirit: and they that worship him must worship him in spirit and in truth.
So you see that your statement I quoted above is incorrect! In spirit and in truth determines what is or is not worship.
It's amazing how much you can eisegetically squeeze into one verse while ripping that verse out of context. That passage is speaking of the coming salvation & soul freedom to worship God in the spirit which would be given to ALL people of all nations who will believe. Where does this verse define true worship as only singing 1950's style music & sheepishly sitting through endless sermons? Sorry, it's not in there. This passage actually supports my position that the individual believer is empowered by the Spirit to worship God directly from own hearts.
I can't say I've ever heard "trashy music, whether rock, jazz, rap, hip hop, heavy metal, death metal" in a church before. We do, however, praise God with the mind & the heart. We actually get excited when we praise God instead of singing old, monotone hymns that sound like funeral dirges. The Psalms, God's hymnal, is full of references to loud music, dancing(no we don't dance at church), clapping hands(yes we do clap hands), singing loudly, & praising God exuberantly. Congratulation, when you condemn other believers for heartfully worshiping our God, you are placing yourself in place of Satan & Michal.
Instead of forcing your beliefs into a single verse, search the Scriptures for every passage which deals with soul freedom & worship before forming your doctrine. Have you never read the following passages?
Praise ye the LORD. Sing unto the LORD a new song, and his praise in the congregation of saints. Let Israel rejoice in him that made him: let the children of Zion be joyful in their King. Let them praise his name in the dance: let them sing praises unto him with the timbrel and harp. For the LORD taketh pleasure in his people: he will beautify the meek with salvation. Let the saints be joyful in glory: let them sing aloud upon their beds. (Psalm 149:1-5)
But this I confess unto thee, that after the way which they call heresy, so worship I the God of my fathers, believing all things which are written in the law and in the prophets: (Acts 24:14)
Then David returned to bless his household. And Michal the daughter of Saul came out to meet David, and said, How glorious was the king of Israel to day, who uncovered himself to day in the eyes of the handmaids of his servants, as one of the vain fellows shamelessly uncovereth himself! And David said unto Michal, It was before the LORD, which chose me before thy father, and before all his house, to appoint me ruler over the people of the LORD, over Israel: therefore will I play before the LORD. And I will yet be more vile than thus, and will be base in mine own sight: and of the maidservants which thou hast spoken of, of them shall I be had in honour. Therefore Michal the daughter of Saul had no child unto the day of her death. (2Samuel 6:20-23)
Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross; And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it. Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days: Which are a shadow of things to come; but the body is of Christ. Let no man beguile you of your reward in a voluntary humility and worshipping of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind, And not holding the Head, from which all the body by joints and bands having nourishment ministered, and knit together, increaseth with the increase of God. Wherefore if ye be dead with Christ from the rudiments of the world, why, as though living in the world, are ye subject to ordinances, (Touch not; taste not; handle not; Which all are to perish with the using

after the commandments and doctrines of men? Which things have indeed a shew of wisdom in will worship, and humility, and neglecting of the body; not in any honour to the satisfying of the flesh.(Col 2:14-23)