articulation

The tip of the tongue is used for a single-hole block on the harmonica, like when playing the 1+/3+ and blocking the 2+ (creating the interval of a 5th, C and G while blowing on a C Harmonica). The tip is not used for standard tongue blocking due to its small size (more on this later). The tip is also used for the "T" articulation so common in the pucker embouchure for single notes, or for everyone when articulating chords.