eBay

Adjustable Robust Clamp Music Mount Tablet Holder for iPad PRO 12.9"

Attached to music & microphone stands in seconds.
Perfect for accessing music or song lists

Holder;
Mount can be uséd with all large tablets 7 to 18.4 inches in screen size
Spring-loaded design
Easy to insert or remove the tablet by pushing down on the lower legs of the holder with one hand.
Included with the holder are 10 support legs (4 short, 2 medium and 4 long versions).
Choose the 4 legs that provide the best fit for your tablet.

Clamp;

Unique jaw design that has an extra wide clamping range for both flat and tubular surfaces, including small posts.
Conveniently installs and removes without any tools on flat as well as round, square, or odd shaped bars and rails.
Clamps onto handlebars and posts 0.25 - 2 inches (0.6cm - 5cm) in diameter
Clamps into tables, desks, and counters 0.2 - 1.75 inches (0.5cm - 4.45cm) thick
Clamp mount is made of high-strength composite materials with corrosion-resistant stainless steel hardware
The mount installs easily with a turn of the clamp's knob. The clamp is padded in order to provide gripping support and protection to the mounting surface
An optional removable security knob is provided to deter theft. Simply remove the existing knob and tighten the clamp with the security knob. Once tightened, the security knob can be removed to deter theft

What is included?
1x Clamp mount 1x Tablet holder

Note; Music stand not included