Notatka techniczna: wykonano przy pomocy GIMP-a oraz Inkscape, CC BY-SA 4.0
Grafiki źródłowe: https://commons.wikimedia.org/wiki/File:One-man_band_street_performer_-_5.jpg (slgckgc, CC BY 2.0) https://commons.wikimedia.org/wiki/File:Dublin_Philharmonic_Orchestra_performing_Tchaikovsky%27s_Symphony_No_4_in_Charlotte,_North_Carolina.jpg (Derek Gleeson, CC BY-SA 3.0) https://commons.wikimedia.org/wiki/File:Roadside_Attraction_-_New_Orleans_Garage_Band.jpg (Ann Larie Valentine, CC BY-SA 2.0)