This was done by request. Someone asked for Rock N Roll, and all I could think of is Chuck Berry. I didn't want to ripoff Chuck Berry, and wasn't sure how to define the parameters of such a broad range of music, so I started with a simple 1 4 5 progression. Once that became repetitive and boring I started to change around the chords and finally structured the song, attempting to maintain a sort of modern rock vibe. I then reached the deadline for this song, appropriately named it dead line and made some last minute adjustments. Here it is.