Noun
(uncountable, printing) A style of parallel folding with the folds alternating between front and back; concertina fold.
(countable, printing) Any printed material (book, leaflet etc.) having such folds; a concertina.
Source: en.wiktionary.orgThe greatest credit for the evening's success must be given to the rich-voiced Juozapaitis as Giovanni, and bass-baritone Stefano de Peppo as... Leporello. Vytautas Juozapaitis
The Don's difficult role never seemed to tax Juozapaitis excellent dramatic voice. Throughout the opera listeners were charmed by his great expressive range as he moved with ease from comic exchanges with Leporello to tender love sings. Vytautas Juozapaitis
Don Giovanni and Leporello arrive soon after. Source: Internet
From a balcony, Leporello invites them to his master's party. Source: Internet
From his hiding place Giovanni sings a promise of repentance, expressing a desire to return to her and threatening to kill himself if she does not take him back, while Leporello poses as Giovanni and tries to keep from laughing. Source: Internet
Giovanni orders Leporello to see what has upset her; upon peering outside, the servant also cries out, and runs back into the room, stammering that the statue has appeared as promised. Source: Internet