Bulgarian Wikipedia has an article on: Свирци Wikipedia bg сви́ря (svírja, “to whistle, to pipe, to play music”) + -ец (-ec) IPA(key): [sviˈrɛt͡s] свире́ц
instrument работя на машина ― rabotja na mašina ― to run/operate a machine свиря на пиано ― svirja na piano ― to play (on) the piano гледам на карти ― gledam