/**
 * Extracts the pitch class from a MIDI note number
 * @param midi - MIDI note number (0-127)
 * @returns Pitch class without octave (e.g., "C", "A#")
 *
 * @example
 * ```typescript
 * midiToPitchClass(60); // "C"
 * midiToPitchClass(72); // "C" (different octave)
 * midiToPitchClass(61); // "C#"
 * ```
 */
export declare function midiToPitchClass(midi: number): string;
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