Tenebris Somnia: Bar Glass Sound Puzzle & USB Cable

Reach the bar and collect four bottles

Use the blue Triangular Stone at the symbol door left of the apartment building's third-floor elevator. The door leads to the street and bar. This follows the early TV, production-company and candle progression in the walkthrough.

Bottle stop	Where to search
Outside	On the street to the left before entering the bar
Tables	Inside the bar, on a table
Counter	Behind the bar
Bathroom	In the bar bathroom

Collect all four before testing combinations. The bottle labels identify the items you are using; they are not a universal answer sequence. On the street visit, also check Copper Star S1 if you are collecting the six stars.

Match the bell and pitcher

1. Interact with the bell at the counter and listen to its tone. This is your reference.
2. Stand beside the large pitcher and use a Bottle from the inventory to add its liquid.
3. Strike the pitcher with the Wrench to hear its current tone. Compare it with the bell rather than judging the liquid's appearance alone.
4. Change the liquid combination and test again. The official guide notes that an empty Bottle can remove liquid, so an unsuccessful attempt does not require restarting the playthrough.
5. When the tones match, return to the bell and ring it again. The glass cracks or shatters. If it has only cracked, finish breaking it with a Wrench strike, then pick up the USB Cable.

Keep a short note of the combination you just tested, so you can undo one change at a time. Listen to the bell again whenever you lose the reference tone. Avoid copying a fill level, a fixed number of pours or another save's bottle labels as the answer.

Action	What it tells you
Ring the bell	The target tone
Strike the pitcher	The tone of your current liquid combination
Add or remove liquid	A new combination to compare
Ring the bell after matching	Whether the glass releases the cable

If the glass will not break

Problem	Next check
You cannot try a different combination	Collect the outside and bathroom bottles as well as those in the main room
A guide's combination does not work	Compare tones on your own save; the bottle solution is randomized
You hear no change from merely looking at the pitcher	Strike it to hear its current tone after using a bottle
The tones seem right but nothing happens	Ring the bell again to test the match
The glass cracked but the cable is still trapped	Finish the broken vessel with the Wrench and collect the item
You have USB Cable but the phone remains off	Obtain USB Adapter and combine them into USB Charger

The published official guide describes the bell's success as shattering the glass; the linked written walkthrough also describes a finishing Wrench hit after cracking. In either case, USB Cable in the inventory is the reliable completion check.

Use the cable and continue

The cable alone is not the charger. Take the film-set stair route on Floor 1 for the USB Adapter, combine it with USB Cable, then return to Ivan's phone in the third-floor study. Use USB Charger near the phone and outlet, and read the projector-lock clue recorded in the Old Book.

Resume the first film and projector route. If you are pursuing Wrench Queen, keep weapon restrictions in mind when visiting the optional Pipe in this same bar bathroom; see the achievement guide.

Sources

• Official Puzzle & Boss Guide, sections 6–7: four bottle stops, tone matching, removing liquid and phone-charger progression.
• Into Indie Games, Part 1: bar route and cracked-glass finishing hit.

Source-checked October 23, 2026. The official guide was retained during this site's first research round. No fixed random solution or in-game audio test by this site is claimed.