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Basic audio editor - see screenshot above. Probably like an early Audacity but with much less functionality. See screenshot 2 above, which is taken from the comprehensive user guide included with the app.
SampleEditor.sit (153.19 KiB / 156.87 KB)
Application / compressed w/ Stuffit
User-Guide.sit (68.03 KiB / 69.66 KB)
User Guide / compressed w/ Stuffit
From Mac OS 7.0
I've run this in System 7.5.3 (in Basilisk II) and in OS 8.6 (in Sheepshaver). I've not tried in OS 9.
Emulating this? It should run fine under: SheepShaver