These days if bands and musicians don't use multi-track recording techniques to record their music, they'd be pegged as unusual. It's completely normal for today's musicians to use 8, 16, 24, 48, and even more tracks to build layer upon layer of music that makes up their recordings. This can make the recording process quite complicated and results in a distinct type of recording feel. The early rockabilly pioneers didn't record like that.
Jackson Pollock
Luther Vandross
John Kennedy
Henri Lautrec
Dr. Seuss