| gptkbp:instanceOf | gptkb:string_quartet 
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                                | gptkbp:alsoKnownAs | gptkb:Sun_Quartets 
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                                | gptkbp:composer | gptkb:Joseph_Haydn 
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                                | gptkbp:containsQuartet | gptkb:String_Quartet_Op._20_No._1_in_E-flat_major gptkb:String_Quartet_Op._20_No._2_in_C_major
 gptkb:String_Quartet_Op._20_No._3_in_G_minor
 gptkb:String_Quartet_Op._20_No._4_in_D_major
 gptkb:String_Quartet_Op._20_No._5_in_F_minor
 gptkb:String_Quartet_Op._20_No._6_in_A_major
 
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                                | gptkbp:dedicatedTo | Baron Joseph von Fürnberg 
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                                | gptkbp:followedBy | gptkb:Haydn's_Opus_33_Quartets 
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                                | gptkbp:genre | Classical string quartet 
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                                | gptkbp:influenced | Beethoven's string quartets Mozart's string quartets
 
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                                | gptkbp:notableFor | use of fugue in finales equal treatment of all four instruments
 
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                                | gptkbp:opusNumber | Op. 20 
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                                | gptkbp:period | Classical era 
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                                | gptkbp:pieceCount | 6 
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                                | gptkbp:precededBy | gptkb:Haydn's_Opus_17_Quartets 
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                                | gptkbp:publishedIn | gptkb:Vienna 
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                                | gptkbp:significance | landmark in string quartet development 
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                                | gptkbp:yearComposed | 1772 
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                                | gptkbp:bfsParent | gptkb:Haydn_Quartets 
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                                | gptkbp:bfsLayer | 7 
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                                | https://www.w3.org/2000/01/rdf-schema#label | Haydn's Opus 20 Quartets 
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