"Variation in typeface but a quality logo design based on type"

On of my favorite music groups is an 80's-90's British R&B trio called Loose Ends. They had a very distinct sound for the time which lead to them being sampled by future hip-hip and new jack style r&b groups. What also interested me about the group was their logo, block comprised of four lines of two different colors arranged horizontally (three) and vertically (one) to look like a "L" and an "E". I also noticed that they periodically switched between a serif and a sans serif typeface to spell out the band's name.