DonnachaDennehy
Tessellatum
(VersionIIforsoloviolaandstringorchestra,2019) (2015/2019/2024)
ForNadiaSirotaandLiamByrne
InmemoryofBobGilmore
AnewversionofTessellatum(originallycommissionedbySymphonySpaceandJeffKipnis)
PerformanceNotes
Duration
c.38'20"
Instrumentation
Forsoloviolaandstrings(6violas,6celli,2bass)
Bowing
Thoughtmayseemstrangeonfirstencounter,mostofthspiecemakesuseofseparatebowing!Thissespecialysoforthefastmateria.Itcomes outofatechnqueofpushingandpullingthatsidomatictopayingthebassvol(theinstrumentthatfeaturedsopromnentlyinthefirstversionofthis piece).Italsoensuresakndofrhythmcsteadinessintheayersofactivtythatrealyhelpstheoveralpcture.
Microtonality
Thepecemovesinandoutofovertone-basedtuning.Inplacesthsisquiteextensive!Inthestringorchestraparts,thenotationofthesemicrotones isasminmalaspossible,soastopreventconfusion.Anymicrotonalynflectedptchisshownbytheappropriateaccidentalony,andtheyshouldbe interpretedasfollows,unlessthere'sanindicatontothecontrary:
µ quarter-toneshap
B quarter-toneflat
÷ threequarter-tonessharp
JK(anarrowstemmingdownfromtheaccidental)about1/6toneflatfromtheaccidentainquestion(smiarintuningtothatofanatural7thharmonic)
Tuningofopenstringsondoublebasses
DoubleBass1istunedordinarly:IV-E,III-A,II-D,I-G
DoubleBass2istunedasfollows:IV-D,III-G,II-D,I-GsoastoallownaturaharmonicsonDandGonthelowertwostrings.
SooVola
Viola1
Viola2
Viola3
Viola4
Viola5
Viola6
Cello1
Cello2
Cello3
Cello4
Cello5
Cello6
sightlypontMatchtuningofflattenedAinCello4
œ≈œœœœœœ≈®œœœœœœœœœœœ≈œœ≈œœœœœ≈œœœœœœœœœœœ®œœœœœœœœ≈œœœœœœœœœœœœœœœœœœœœœœœœœœœœœœœœœœ®œœœœœœœœœ≈œœœœœœœœœœœœœœœœœœœœœœœœœœŒ
œ≈œœœœœœœœœœœœœœœœ≈œœœœœœ≈œœœœ®œœœœœœœœœœœœœœœœœœœœ≈œœœœœœœœœœœœœœbœœœœœœœœœœœœœœ≈œœœœœœœœœœœœœœœœœœœœœœœœœœœ
Withalittleexpressivy(flautando)