## What does 撥の音も加えた gliss. mean? (in sheet music)

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I am a musician playing the Marimba. Because quite a bit of music for marimba is written by famous Japanese composers, occasionally I come across some Japanese text I would like to understand.

In the piece "Two methods of Movement for Marimba", written by Toshimitsu TANAKA, there is, on the 6th page, a Glissando (moving with the sticks along all bars) with a star. At the bottom of the page, the star is printed again, this time with a note in Japanese.

(Full images: glissando & note.)

★撥の音も加えたgliss.

I would be very grateful if someone could unveil the meaning of that sentence.

Glissando complemented by the sound of drumsticks.