Extra Mallets For Multi-Player Fun!JOIA is pronounced "Joy" "Ah!". JOIA is Brazilian Portuguese for Bright, Brilliant, Clear and Shining! Features include rich deep resonant tones to high pitched tones, and pentatonic, diatonic & chromatic scales. Explore rhythm with self expression and improvisation as never before. These tubes are great with a band or as a solo instrument. From beginner to professional, JOIA Tubes are easy to play.