<P> The theme song is a piece of production music called "Temptation Sensation" by German composer Heinz Kiessling . Additionally, Kiessling's work ("On Your Bike" and "Blue Blood") can also be heard during various scene transitions throughout the show, along with other composers and pieces such as Werner Tautz ("Off Broadway"), Joe Brook ("Moonbeam Kiss") and Karl Grell ("Honey Bunch"). Many of the tracks heard in the series have been taken from Cafe Romantique, an album of easy listening production music collected by Extreme Music, the production music library unit of Sony / ATV Music Publishing . Independent record label Fervor Records has also contributed music to the show . Songs from The Jack Gray Orchestra's album, Easy Listening Symph - O - Nette ("Take A Letter Miss Jones", "Golly Gee Whiz", and "Not a Care in the World") and the John Costello III release Giants of Jazz ("Birdcage", "Cotton Club" and "Quintessential") are heard in several episodes . The soundtrack, featuring most of the music heard on the show, was released in 2010 . </P> <Table> <Tr> <Th_colspan="5"> It's Always Sunny in Philadelphia (Music from the Original TV Series) </Th> </Tr> <Tr> <Th> No . </Th> <Th> Title </Th> <Th> Music </Th> <Th> Artist </Th> <Th> Length </Th> </Tr> <Tr> <Td> 1 . </Td> <Td> "Temptation Sensation (Main Title Theme)" </Td> <Td> Heinz Kiessling </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 53 </Td> </Tr> <Tr> <Td> 2 . </Td> <Td> "Derby Day" </Td> <Td> Werner Tautz </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 39 </Td> </Tr> <Tr> <Td> 3 . </Td> <Td> "Blue Blood" </Td> <Td> Heinz Kiessling </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 54 </Td> </Tr> <Tr> <Td> 4 . </Td> <Td> "On Your Bike" </Td> <Td> Heinz Kiessling </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 15 </Td> </Tr> <Tr> <Td> 5 . </Td> <Td> "Take the Plunge" </Td> <Td> Heinz Kiessling </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 3: 10 </Td> </Tr> <Tr> <Td> 6 . </Td> <Td> "Hotsy - Totsy" </Td> <Td> Heinz Kiessling </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 18 </Td> </Tr> <Tr> <Td> 7 . </Td> <Td> "Off Broadway" </Td> <Td> Werner Tautz </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 31 </Td> </Tr> <Tr> <Td> 8 . </Td> <Td> "Coconut Shy" </Td> <Td> Heinz Kiessling </Td> <Td> The Diamontinos </Td> <Td> 2: 25 </Td> </Tr> <Tr> <Td> 9 . </Td> <Td> "Honey Bunch" </Td> <Td> Karl Grell </Td> <Td> The Ralph Manning Orchestra </Td> <Td> 2: 44 </Td> </Tr> <Tr> <Td> 10 . </Td> <Td> "Glitterati Party" </Td> <Td> Werner Tautz </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 51 </Td> </Tr> <Tr> <Td> 11 . </Td> <Td> "Singles Soiree" </Td> <Td> Richard Faecks </Td> <Td> The Rüdiger Piesker Orchestra </Td> <Td> 2: 09 </Td> </Tr> <Tr> <Td> 12 . </Td> <Td> "Pink Deville" </Td> <Td> Paul Rothman </Td> <Td> The Ole Olafsen Band </Td> <Td> 2: 34 </Td> </Tr> <Tr> <Td> 13 . </Td> <Td> "Captain's Table" </Td> <Td> Heinz Kiessling </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 44 </Td> </Tr> <Tr> <Td> 14 . </Td> <Td> "Starlet Express" </Td> <Td> Werner Tautz </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 31 </Td> </Tr> <Tr> <Td> 15 . </Td> <Td> "Final Fling" </Td> <Td> Heinz Kiessling </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 29 </Td> </Tr> <Tr> <Td> 16 . </Td> <Td> "Sweetheart Serenade" </Td> <Td> Werner Tautz </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 54 </Td> </Tr> <Tr> <Td> 17 . </Td> <Td> "Tea at Tiffani's" </Td> <Td> Werner Tautz </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 2: 28 </Td> </Tr> <Tr> <Td> 18 . </Td> <Td> "Moonbeam Kiss" </Td> <Td> Joe Brook </Td> <Td> The Rüdiger Piesker Orchestra </Td> <Td> 2: 21 </Td> </Tr> <Tr> <Td> 19 . </Td> <Td> "Grand Central" </Td> <Td> Werner Tautz </Td> <Td> The Heinz Kiessling Orchestra </Td> <Td> 3: 15 </Td> </Tr> <Tr> <Td_colspan="4"> Total length: </Td> <Td> 50: 05 </Td> </Tr> </Table> <Tr> <Th_colspan="5"> It's Always Sunny in Philadelphia (Music from the Original TV Series) </Th> </Tr> <Tr> <Th> No . </Th> <Th> Title </Th> <Th> Music </Th> <Th> Artist </Th> <Th> Length </Th> </Tr>

Where was it's always sunny in philadelphia filmed