so if I am using strips to make a log cabin, would I sew them onto a light muslin also, or just sew them together???

String quilts are (generally) scrap quilts made from scrap strips of fabric in various widths/lengths. Strip quilts are (again, generally) made from a specific width/length of fabric strips - cut from new fabrics or using precuts. ( jelly roll quilts are strip quilts) , not string quilts

LOL Good way to decide.

When I think of strip quilts I think of the Jelly Roll Race quilt. My string quilts come from my scrap drawer and are various widths and lengths and I sew them to a foundation, usually phone book pages.

This is my scrap/strip quilt that I just finished....they were strips and scraps....My mom made these all the time I was growing up, because all she would have was scraps other people would give her......they helped keep us warm on many cold nights.. so many quilts on the bed, you couldn't turn over....LOL I used the 10" piecing papers from Missouri Star Quilt Co...

I do not sew log cabin blocks onto muslin. I just sew my strips together.

I just completed 128 what I call string blocks to make two string block quilts similar to yours. I made my blocks 8.5 inches, no foundation used. After all the blocks not sure I have the energy to make a strip pieced border. Here I was trying to reduce my scrap pile but that didn't happen.

These I would classify as string quilts due to the strips of fabric being various widths and lengths. I like your top.

lol,my interpretation also

Shayarene, most log cabins are strip quilts and do not need to be sewn onto a foundation. I have made 2 and just pieced them like regular quilts, my log strips were 2" or 2 1/2" wide. However, if your "log strips" are very long and thin (1" wide or less) and you are making large blocks, a foundation can't hurt.