daccord

import daccord from 'daccord'; import teoria from 'teoria'; // Create a root note, for example C4, using the Teoria library const root = teoria.note('C4'); // Parse a complex chord symbol (e.g., minor major seventh) into relative intervals const intervals = daccord('m(maj7)'); // Map the relative intervals to absolute notes using the chosen root note // This will return an array of Teoria Note objects const notes = intervals.map(intervalStr => root.interval(intervalStr)); // To get the string representation of the resulting notes: const noteStrings = notes.map(note => note.toString()); console.log(`Chord 'm(maj7)' from C4: ${noteStrings.join(', ')}`); // Example with error handling for unparsable chord strings try { // This will throw an error as 'invalidchord' is not a recognized symbol daccord('invalidchord'); } catch (error) { // The error object thrown for invalid input has a 'name' property of 'ParseError' if (error.name === 'ParseError') { console.error(`Parsing error: ${error.message} at token '${error.token}' (index ${error.index})`); } else { console.error(`An unexpected error occurred: ${error.message}`); } }