Roland GR-1 Owner's Manual page 177

Advanced applications
"Ideas for Getting the Most out of Your GR-1"
[Objective]
This section introduces key points in creating sounds with the
GR-1 which have not been covered in detail in Sections 1
through 7, and gives you some practical ideas aboul how to use
these sounds. These are only a few of the things you can do, of
course, but we hope they will help you to generate unique sonic
textures.