Romans 16:19  For your obedience is come abroad unto all men. I am glad therefore on your behalf: but yet I would have you wise unto that which is good, and simple concerning evil.

Be Simple, but not blind and dumb to evil - or it will deceive you, your wife and your kids!

Of the three elements, melody, harmony and rhythm, it is RHYTHM that is the most dangerous one.

Melody...
affects our thinking.

Harmony...
affects how we act - our emotions, etc.

Rhythm...
affects our flesh!
    Burn
    Quench
    Accuse
    Shame
    Testimony
    Please the Devil
    As the weapon of the devil, music can rob...
        ... you of the work of the Holy Spirit in your life
        ... you of the power of God
        ...God of His glory
        ... your fellowship with God
        ... your meditations
        ... you of the truth
        ... true heavenly citizenship
        ... you of your final counsel from God
        ... you of your 2nd set of blessings
        ... your praises due Him!

Blues Scale:
Hammite scale
Through this blues scale, we see that it is the way rhythm gets into the melody.
C b3 4 b5 5 b7 1
C - Eb - F - Gb - G - Bb - C

Look at Ephesians 4:14,16 and see how Scriptures can show that music ought to be tight - it ought to all fit, as did the late Baroque and early Classical music.

Leavening of rhythm over the years, prepares the world today to be prepared to bow down to the anti-christ with ALL kinds of music! Daniel 3:5, etc.
    Big Band
    Rock
    Rhythm in melody
    Demonic
    New Age (sensual, Jude, Isaiah 2, no form, no rhythm - melody only with nature sounds, etc.)

Listen to the details of how one can learn from an internet DVD set on how to play 'Evangelistic Piano Style.'  Listen to some quotes as I read how this guys says  a pianist can work the crowd with the music by using tripletized walkups, cascading waterfalls, chord substitutions, crunches, lucious full-chorded arpeggios, rhythmic variations and fills galore; how to apply various rhythmic styles,

Bluegrass, etc.
In today's Bible Believing churches, the RHYTHM is coming into the church through rhythm in the melody - the banjo, the guitar, etc.

Boom Boxes in cars...

Mice and Music Scientific Testing
I quote from a scientific study done in 1988. (more quotes on the audio)

mice were given 8 weeks of music
    one set had incessant drumbeats
    one set had Strauss waltzes
    one set had silence.
    conclusions showed that not only did the incessant drumbeat set of mice have horrible memory, etc, their brain cells showed damage in the RNA from 'branching and sprouting' of the neurons - actual physical damage from the drumbeats.
    stress rhythmic sounds disrupts biological processes.