#2
Very repetitive but overall there were some nice riffs but there were also some originality lacking riffs. For the drums maybe some fills would spice it up?
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#4
I agree - very repetitive.

The song lost my attention very quickly because nothing was really happening - it was all the same thing over and over. The same goes for all the other tunes - try writing more parts, or things that stand out more to keep the listeners' attention.