There are a few interesting features on this chart. The entire Psalter is sung through in a half-year. However, this involves a Wednesday service (Jour des Prieres), as well as the use of pre-service songs before the morning and evening Sunday services. It also sometimes involves determining the song before and after the sermon, thus taking this song selection out of the hands of the minister. Also, the singing of whole Psalms is the norm, although where the Psalm is long, it will be split up over two or more services.
I think something like this could be used in twenty-first century Reformed worship services as well. I’m going to tinker with it and see what I can come up with. I agree with Witvliet that there is value in singing all the Psalms on a regular basis.