• 

  Johann Hoffmann Duetto D-Dur Part 2 - YouTube

  https://www.youtube.com/watch?v=QnMpHtkP-nY

  Katsia Prakopchyk and Roland Faber plays Duetto D-Dur by Johann Hoffmann Music Highschool Düsseldorf 2008

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  streichquartett nr. 5 - YouTube

  https://www.youtube.com/watch?v=KoGc3Q-VEc4

  steven heelein - streichquartett nr. 5

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