I would like to make a few observations that drive my decision making in this area and may be helpful to others.
ALL music for the worship of God or for entertainment has its roots in paganism. Abraham was a Syrian.
ALL music used by Israel was constantly subjected to pagan influences: Egyptian bondage, Assyrian bondage, Babylonian bondage, Persian bondage, etc.
ALL music is a product of cultures that are dominated by non-Christian influences be they Greek, Druid, Asian, African, Caribbean, Native American, Hispanic, etc.
I also believe that Israel in the OT is just a snapshot of God's dealing with humanity. They are used to show that God desires to have a group of people that worship and serve Him. This has nothing to do with ethnicity or culture because the strangers were always welcomed into the worship of God. With that said...... I do not believe we have warrant to use narratives of Jewish life as instructional material unless Scripture specifically directs us to.
I also do not see where the NT deals directly with genre, rhythm, time, etc. as it pertains to music. I would think if there was a hard and fast standard that this standard would have been given at this early stage. The people of Europe and Asia who were immersed in the grosses of paganism would have needed this information as much as anyone would ever need it but Scripture is silent. There is much about the content of music used in the worship of God but nothing about rhythms, beats, time, etc.
Since people are all ABSOLUTELY unique, I do not know how anyone could say that a particular genre stimulates the same emotions or thoughts in everyone. I work with guys that listen to death metal all day. I am not reminded of any of my behavior patterns prior to salvation by the music. I really do not actually hear it except when another guy and I joke about their calling the groups growling singing.
It appears that some believe in individual soul liberty except when it comes to music. There are some genres that I do not like to hear. There are others where the music overpowers the lyrics and I cannot understand what is being said. For me these are not conducive to worship but in any gathering of the church I will not be the only one there so I would be willing to let someone else be edified by the music. There are even widely accepted music styles that I do not think lend to worship like the liturgical styles. I have been subjected to and even learned to enjoy "A Mighty Fortress..." though the rhythm and music is horrible in my opinion but for a sixteenth-century German monk it was probably good stuff.
Since Scripture is not instructive on rhythm, time, beat, etc. I see no reason why INDIVIDUAL soul liberty would not apply in this instance.