Function parse_musicxml 

pub fn parse_musicxml(_xml: &str) -> Result<Expr>

Parse MusicXML into a Fermata AST.

This enables round-tripping: MusicXML → Fermata → MusicXML

Example

let xml = std::fs::read_to_string("score.musicxml")?;
let ast = fermata::parse_musicxml(&xml)?;
println!("{}", fermata::format(&ast));