Music in Church

¹⁰ As each of you has received a gift (a particular spiritual talent, a gracious divine endowment), employ it for one another as [befits] good trustees of God’s many-sided grace [faithful stewards of the ^[f]extremely diverse powers and gifts granted to Christians by unmerited favor].
1 Peter 4:10 (AMP) 
(to be sure the words are properly understood)

If you have the God-given gift of musical talent and do not use it for worshiping and giving glory to God, why would you not consider this sin?

Every good thing we have, material and immaterial, is given to us by God to be used for His glory. 
To willfully not do so can only be out of ignorance or disobedience.

Ignorance is not a bad thing as long we apply ourselves to seek out the truth of the matter, and not be bound by the teaching of men.   

There is no way to legitimately use scripture to exclude the use of musical instruments in worship, and we someone tries it only reveals how little they understand the Bible.

T