Great pattern. Simple and sexy.
It has no specific instructions, but it is very similar to the Front Fastening Crop Top Bra, which has a video tutorial that clearly explains all the steps. There are even stitch configuration details for each step.
To take into account that the existing video only explains the construction with fold over elastic (which may not be an issue if you have some expertise in lingerie).
Since I am a newbie I adapted the pattern to be similar to the Front Fastening Crop Top Bra, without side openings and adapted the style a bit.
It was easy to sew and very fast! I used fold over elastic in both of my versions. One first test with viscose knit and other with elastic mesh. Both with recycled bra straps.