https://www.merriam-webster.com/dictionary/double%20fugue
DOUBLE FUGUE Definition & Meaning - Merriam-Webster
The meaning of DOUBLE FUGUE is a musical fugue with two subjects that are treated both separately and simultaneously.
double fuguedefinitionmeaningmerriamwebster
https://imslp.org/wiki/Double_Fugue_in_C_minor_(Albrechtsberger,_Johann_Georg)
Double Fugue in C minor (Albrechtsberger, Johann Georg) - IMSLP
albrechtsberger johann georgdouble fugueminorimslp
https://www.iconarchive.com/show/fugue-icons-by-yusuke-kamiyamane/control-double-270-icon.html
Control double 270 Icon | Fugue Iconpack | Yusuke Kamiyamane
Click to download Control, Double, Fugue icon from Fugue Iconpack by Yusuke Kamiyamane
controldouble270iconfugue