If something has a homophonic texture then it has a chordal texture :)
guitar
Easy!!!! EDC (the riff) CEGE (the riff) CAAAAA AABAG (the riff) EGGGA (the riff) CEGE (the riff) CAAAAA AABAG (the riff).
The word chordal is not a location, but instead refers to lines that are used in geometry. Cairo is a city that is located in Egypt.
fo
Riff was the orange dinosaur.
Try Black Sabbath's NIB (main riff), Iron Man (main riff), Black Sabbath (opening riff) Candlemass' Solitude (main riff, second riff) Deep Purple's Space Truckin' (main riff, chorus riff), Black Night (all) Dio's Holy Diver (opening riff) Danzig's Twist of Cain (opening riff; it's easy but fast)
F#
I Like to Riff was created in 1978.
Rhythm in a Riff was created in 1947.
Riff Markowitz was born in 1938.
Borkum Riff was created in 1969.