Hi, I tend to think of worship as being more than just songs/music, although that is part of it.
On that point though, I really think that singing/praise is basically a form of prayer to God - just think about the songs we have.
There are songs of thanksgiving, songs of praise, songs of petition, songs seeking forgiveness, even battle songs, and many more. Think of the Psalms they are both songs and prayers.
Worship generally is about giving honour to God, which we can also do through our lifestyle.