While "duduk" most commonly refers to the double reed instrument described on this page, by coincidence there is a different instrument of the same name played in northwestern Bulgaria.
Samas kui nimetus "dudukk" vihjab tavaliselt sellel leheküljel kirjeldatud topeltlesthuulikuga instrumendile, on olemas ka täpselt sama nimega, kuid teistsugune instrument, mis pärineb Loode-Bulgaariast.