After Image is a sonic representation of the lasting impressions that certain things leave on us. While the concept of the afterimage is typically associated with the visual realm, it can also encompass any ephemeral or transient phenomena. From the lingering effect of a bright light, the recollection of a conversation, to the prolongation of a sound in a reverberant space, and so on.

​

This piece is written for two vibraphone players, with an option to share the same instrument. Each plays a different role in the harmonic and melodic development of the piece, despite occupying the same physical and material space of the instrument. The vibraphone is both struck and bowed to explore its timbral potential, creating a range of sounds from hard to soft, long to short, fleeting to extended, and metallic to warm.

At the upper end of the instrument, a series of fleeting melodic motifs start slowly with a soft attack. They gradually become more brief, chaotic, and harder. Meanwhile, a series of low drones are played at the bass end of the instrument. Initially, it is difficult to distinguish between the two ‘voices’, but the distinction becomes clearer as they become more timbrally distant.

​

In parallel to this, the drone-like tones seem to mimic the melodic material in terms of timing and tone, lingering like an afterimage. Initially, the notes used in both parts share harmonics, resulting in a resonant and ‘blended’ sound. As the piece progresses, the relationship between the tones becomes more dissonant, creating a rhythmic pulsation or interference of sound. This represents the gradual fading of both the afterimage and the presence of its stimulus.

​