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The THX Deep Note

The THX Deep Note


The original THX Deep Note music notation – 30 voices over seven measures – that shook many a theater and humbled my home system time and time again.


The THX Deep Note

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The original THX Deep Note music notation reference had a decidedly ‘hand drawn” style and included a few extra text notes. That image has been re-rendered here with a slight stylization to make it more of a graphic element — and nerdy conversation starter — as opposed to a fully functional bit of musical instruction. However, for someone who can read music (I can’t) I’m guessing there is still enough here to rattle the house and wake the neighbors with.


Shirt Information:

• DTG printed Unisex Staple T-Shirt | Bella + Canvas 3001
• 100% combed and ring-spun cotton
• Fabric weight: 4.2 oz (142 g/m2)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping



The Deep Note is the sound trademark of THX Ltd., being a distinctive synthesized crescendo that glissandos from a relatively narrow frequency spread (about 200–400 Hz) to a broader frequency spread (of about three octaves). It was created by James A. Moorera former employee of Lucasfilm’s Computer Division in late 1982. The sound is used on trailers for THX-certified movie theaters, home video releases, video games, and in-car entertainment systems. The Deep Note debuted at the premiere of Star Wars: Episode VI – Return of the Jedi in Los Angeles.

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