Based on your later remarks:
A standard light stand holds a much larger weight than you need, but still doesn't like irregular ground or wind: it can sway far enough to fall over. Weights (sandbags) keep it from falling over. So you need a very light mast and legs that accept weights and apply enough torque to keep it upright. Design it for that mode, rather than using that as a work-around. You see that the meaning of legs is different than how a tripod is used.
In fact, the "leg" does not have to be used in compression, but can be used in tension. You might recognise this as a guy-wire for a tower or pole.
If you had a weight on a string you could drop it anywhere, regardless of terrain level or precise positioning of a suitable spot, and tie the other end to an eyelet some diatance up the mast, for each of 3 supports. If weight can be found at the scene or obtained from other items you have, the weight and bulk is impressively small. Kevlar line is sold for R/C models' control actuators and is very non-stretchable. Maybe paracord is good enough. The mast can be a segmented fiberglass rod like used in camping tents.
The problem is that the stability and ridgedness is intolerant of the planted weights shifting on the ground. (If you had pegs to stick in the ground, that's fine, and the more typical use of such a concept.) So enter another refinement:
Each "leg", attached near the bottom of the mast, is a light rod that is not meant to hold the mast against tipping, but simply to keep the anchor point at a constant distance. Picture this, for lack of a drawing: strap the mast to a toolbox or cooler or something to hold it upright albeit not very steadily— it's a huge lever that can roll the cooler with a small force at the opposite end.
Deploy three legs, about a foot off the ground. Lower each one 'till it touches the ground, which may be different levels for each. If it doesn't lay well, rotate around the mast a short way, or shift the attachment point up or down to change the radial diatance. Weights are placed on these low-lying legs, preferably near the far ends. Now you have good anchor positions, but not enough leverage. Finally, attach a line from the tip of the leg to a point a ways up the mast; as high as you can easily reach, or the very top since you don't have to reach it if you attach that end first.
Now you have a triangle with two sides in compression and one in tension. The tension is kept due to the other leg-combos, and the locking in place from opposing guys applies not only to the vertical side of the triangle but to the bottom lower-leg as well!
You can make a remarkably tall mast with nothing more than tinkertoys and shoelaces. Or to look more professional, segmented fiberglass rods and paracord. Or if you like Gilligan's Island, bamboo and coconut husk fibers.
I think most productions just use a crew member and a boom.
A 40-inch hellium balloon would hold that recorder and keepmit there for 4 days. You could advertise your production on the balloon too, or dress it as a flying saucer and use it as a prop, so it comes out of a different department's budget.
