I was born in 1950 and remember the decade of the 50’s as a time when my mom read to us every day. There was one particular book that I recall enjoying but have not seen since I was a child. Whenever I made the weekly trips to the library with my three (now adult) sons, I would look for that book but never saw it.
This is what I do and do not remember. I do not remember the title, author or even what the book looked like. In fact, I can’t remember how it ended! What I do remember is that it was the story of a young child (boy I think) whose great aspiration was to play the triangle in the orchestra. This required him traveling a distance to get to the orchestra in some distant town. His mother packed his suitcase for him and filled it with sandwiches! Of course I’m relying on a memory from 60 years ago so who knows! Funny but I can’t remember if he ever achieved his dream!
It sounds like Gossamer Wump, including the sandwiches, but that was a record and I can’t find any listings for it as a book.
I agree with Mama Squirrel — I bet it was the record of Gossamer Wump.