These two games have playlists you can stream from an external website: Laid Off from the Synesthesia Factory, Life On Mars?
At least one track was blocked when I played them YMMV.
Some games have sound effects: Cat Scratch, GROWBOTICS, (Summit), (Taghairm), To Burn in Memory
Have I missed any?
I don’t recall playing a parser game with sound.
These are the largest blorbs in the comp zip (larger ones are more likely to include audio):
SIZE
1019436 09-30-15 16:35 Ether/Ether.gblorb
1114454 09-30-15 16:35 Pilgrimage/Pilgrimage.gblorb
1149914 09-30-15 16:35 Gotomomi/Gotomomi.gblorb
1162950 09-29-15 02:27 The Baker of Shireton/The Baker of Shireton.gblorb
1292104 09-30-15 16:35 The Sueño/The Sueno.gblorb
1386330 09-30-15 16:35 Sub Rosa/Sub Rosa.gblorb
1477444 09-25-15 16:16 Midnight Swordfight/Midnight Swordfight/Midnight- Swordfight-.gblorb
1933772 07-01-15 23:18 Recorded/Release/Recorded.gblorb
2084218 09-30-15 16:35 Untold Riches/Untold Riches.gblorb
2479774 09-30-15 16:35 Laid Off from the Synesthesia Factory/Laid Off from the Synesthesia F.gblorb
2820830 09-26-15 22:22 Map/Release/Map.gblorb
3191138 09-28-15 13:38 Brain Guzzlers from Beyond!/Release/Brain Guzzlers from Beyond!.gblorb
Note that many of these games have updates which you can get by downloading them individually.