they are called (string quilts) because traditionally they were created with the really thin (narrow) strips many people throw away- calling them strings-
then others --- don't throw anything away- and started using them up----string quilts were born.
yours is WONDERFUL! - some of them wind up being very heavy quilts- i quilt for a lady who makes a number of them every year- they weigh a ton when quilted and bound! very heavy-warm quilts---she uses scrap muslin for foundations and stitches strips onto the foundation as narrow as 1/2"!!! i think the widest i've seen on her's was just over an inch- and she makes BIG quilts! they are so great!
great use of scraps