anchor.diff:  FROM minidocks/pyinstaller AS abc2xml
   
   ARG xml2abc_version=139
  -ARG abc2xml_version=221
  +ARG abc2xml_version=226
   
   RUN apk add wget && wget -O /tmp/xml2abc.zip "https://wim.vree.org/svgParse/xml2abc.py-${xml2abc_version}.zip" \
       && wget -O /tmp/abc2xml.zip "https://wim.vree.org/svgParse/abc2xml.py-${abc2xml_version}.zip" \
  
positive.code: COPY --from=abcm2ps /tmp/build /
  COPY --from=abc2xml /tmp/final/* /usr/local/bin/
  
  ARG abc2svg_version=1.20.7
  
  RUN apk add pango && npm i -g abc2svg@$abc2svg_version jszip && clean
  
  
negative.code:     && tar -xvzf /tmp/abcpp.tar.gz -C /tmp && cd /tmp/abcpp* \
      && mkdir -p /tmp/build && make && mv abcpp /tmp/build
  
  ARG abcm2ps_version=8.14.9
  
  RUN wget -O /tmp/abcm2ps.tar.gz "https://github.com/leesavide/abcm2ps/archive/v${abcm2ps_version}.tar.gz" \
      && tar -xvzf /tmp/abcm2ps.tar.gz -C /tmp && cd /tmp/abcm2ps* \
      && mkdir -p /tmp/build && ./configure && make DESTDIR=/tmp/build install
  
  ARG abc2midi_version=2020.06.30
  
  RUN wget -O /tmp/abc2midi.zip "https://ifdo.ca/~seymour/runabc/abcMIDI-${abc2midi_version}.zip" \
      && unzip /tmp/abc2midi.zip -d /tmp && cd /tmp/abcmidi* \
  