Below is the hyperlink to the developers, thanks to GSWorldView's information

Name Hyperlink Brief description
Sound Editor 2.2 http://michaeljmahon.com Best Sound Quality for Apple][
FishWings v0.87 http://noboot.com/charlie/software/fishwings.htm View and export the content inside disk image
WASP v0.28 http://noboot.com/charlie/software/waspinfo.htm An external editor for programming Applesoft BASIC
AppleCommander 1.3.5 http://applecommander.sourceforge.net Move data between disk images and a native filesystem