Fix LaTeX layout

TeX_Randhartinger_AdTeLevavi_Score_Instruments.tex

 \documentclass[a4paper,10pt,naustrian,twoside]{report}
-\usepackage{editionkainhofer}
+\usepackage[instrumentalparts]{editionkainhofer}
 \input{TeX_Randhartinger_AdTeLevavi_Settings.itex}
 
 \hypersetup{

TeX_Randhartinger_AdTeLevavi_Score_Long.tex

 \documentclass[a4paper,10pt,naustrian,twoside]{report}
-\usepackage{editionkainhofer}
+\usepackage[fullscore]{editionkainhofer}
 \input{TeX_Randhartinger_AdTeLevavi_Settings.itex}
 
 \hypersetup{
     pdftitle={\scoreTitle, \LongScoreType},
 }
+\makeatletter
+\renewcommand\backmatter{%
+\clearpage
+% \@mainmatterfalse
+}
+\makeatother
 
 \scoretype{\LongScoreType}
 \scorenumber{\scoreNumber\LongScoreNumber}
@@ -19,7 +25,7 @@
 \includescore{Score_Long}
 
 
-\cleardoublepage
+% \cleardoublepage
 \backmatter
 \appendix
 \input{TeX_Randhartinger_AdTeLevavi_Include_KritBericht.itex}