Take a barber shop quintet and endow it with musical genius, a pulsating sense of rhythm, an eclectic range of musical sources, wit and agility and you have an inkling of what Hot Mouth at Tallaght is like.

This is ear-riveting, entertaining and provocative. Three men (Daniel Jones. William Moses and Jonathan Stone) and two women (Grisha Coleman and Helga Davis) pack sufficient vocal range and versatility (not to mention a relaxed but totally purposeful commitment to movement) to hold a bare stage for 70 minutes. They are about communication and abstract interaction through the evolution of music.

The discreet technology of head microphones gives them total freedom of body and voice. They apparently improvise, but always within a superbly crafted discipline. Their curiosity about the nature of sound is immediately evident, full of delightful surprises. Breathing; humming high and low; glottal stops, yelps and gulps; snatches of languages (real and imaginary); echoes of songs familiar (fantastic on Yes, We Have No Bananas) and sounds ethnic (African, Hebrew, Greek) combine in a journey of discovery. Words are incidental - notes and gestures convey almost all. The ephemeral nature of contact is embodied in their opening/closing lines: "The moment that I saw it, it's done come and gone."

I urge you to hear and enjoy for yourself before it done come and gone from Tallaght.

Plays until Saturday (booking at 1800 224228)