Cotton is a fiber (from the cotton plant). Flannel is a finish or weave. Hence you can have flannel wool as well as cotton flannel - i.e wool made with flannel finish or cotton made with flannel finish. Hope this helops.
A very memorable song from Joni Mitchell that featured the line They paved paradise and put up a parking lot.. This best described places I remember growing up in Bloomington, MN in my teens where numerous places were torn down, most notably a restaurant I frequented that was replaced with a Park and Ride lot.
Take Me to Church by Hozier is featured in We Built This Glee Club, the eleventh episode of Season Six. It is sung by the New Directions, with solos from Jane, Kitty, Roderick, and Skylar. They perform this song at the 2014 Western Ohio Sectional Championship.