Octavian

Instantly creates note objects from strings like 'A#4' with accessible properties such as frequency and piano key number, as demonstrated in the README's basic usage examples.

Intelligently normalizes invalid notes like 'E#' to 'F', ensuring musical accuracy without manual input validation, which simplifies error handling.

Includes dedicated methods for all common intervals, from minorSecond to perfectOctave, allowing easy transposition and chord construction without complex calculations.

Supports multiple chord types and aliases, such as 'major' or 'm7b5', with straightforward API calls to generate notes, frequencies, and piano keys from root notes.