Hohner Golden Melody Progressive Series Harmonica, Key of AReengineered for modern performance, the Hohner Golden Melody Progressive Harmonica in A builds on the legacy of the original while enhancing comfort and tone. Tuned to equal temperament, this diatonic harmonica is ideal for lead melodies where accurate pitch is essential. The red ABS comb and sealed construction improve both the instruments airtightness and its tonal projection, resulting in a playing experience that feels smooth and expressive.