POSTIN

/bin/sh

if [ -x /usr/bin/update-menus ]; then /usr/bin/update-menus || true ; fi 

/usr/sbin/update-alternatives --install /etc/timidity/timidity.cfg timidity.cfg /etc/timidity/timidity-custom.cfg 10

POSTUN

/bin/sh

if [ "$1" = "0" -a -x /usr/bin/update-menus ]; then /usr/bin/update-menus || true ; fi 

if [ "$?" = "0" ]; then
/usr/sbin/update-alternatives --remove timidity.cfg /etc/timidity/timidity-custom.cfg
fi

Triggers

TiMidity++ <= 2.13.2-1mdk

/bin/sh

/usr/sbin/update-alternatives --install /etc/timidity/timidity.cfg timidity.cfg /etc/timidity/timidity-custom.cfg 10