e-reader holder for GoPro-style connector

I play baritone saxophone with several different groups and I hate using music stands, but also hate having to use a traditional music lyre with paper music. Because of this, I searched for any preexisting 3D printable holders for my Kobo Libra Colour e-reader and could not find any suitable solutions to attach the e-reader to my saxophone. I had used a 3D printed phone lyre holder ( https://www.thingiverse.com/thing:5648954 ) before and found it secure and functional so I imported the STL into Fusion 360 and made it significantly taller to accommodate my e-reader's dimensions. I also had concerns that the lyre clip method would not be secure enough to protect my e-reader, so I opted to remove the lyre connector on the phone holder and replaced it with a GoPro-style connector to be used with the fantastic and well-documented Modular Mounting System Arms ( https://www.printables.com/model/185322-modular-mounting-system-arms-customizable?lang=en ). I attached the assembly to my baritone saxophone with a TPU pipe clamp I designed with a GoPro-style connector. The clamp is still a work in progress as I've found that the flexibility of the TPU, while necessary for secure attachment to the saxophone, introduces significant instability to the entire assembly. I will likely iterate on it with a modular solution that has a rigid GoPro-style connector but flexible TPU clamp. Theoretically, any attachment with a GoPro-style connector will make this a universal holder for an e-reader (or other small tablet) for any conceivable application. If a clamp is necessary and the feature is cylindrical rather than slightly conical as in my case with the bari sax, I recommend using PETG rather than TPU as it will result in greater rigidity. This project was completed as a project through the Cal Poly Humboldt Makerspace for Cal Poly Humboldt IdeaFest. This work, "e-reader holder for GoPro-style connector", is adapted from "Music Instrument Phone Lyre" by lherber, used under CC BY 4.0. "e-reader holder for GoPro-style connector" is licensed under CC BY-SA 4.0 by Drake Newell. "Modular Mounting System Arms (Customizable)" by 6d6178 is licensed under CC BY 4.0