First time I saw (+ 1 2), I thought it was a typo. Spent an hour trying to “fix” it into (1 + 2). My professor let me. Then he pointed at the REPL and said, “That’s not math—it’s music.” Never forgot that. The '? That’s the silent note.
I suppose my suggestion would break those semantics.
Syntax mattered less than rhythm. Parens weren’t fences, they were measures. The REPL didn’t care if I understood. It played anyway.