The Ceder Square Dance System (CSDS) is a tool for writing square dance choreography, storing square dance sequences, modules and resolves, and manipulating lists of square dance calls.

2-couple, 3-couple, 4-couple, and 6-couple choreography can be written. The program also allows for asymmetric sequences and square rotation of 45 degrees (e.g., 1/2 Counter Rotate 1/4, or from a Thar: Cross By).

CSDS was designed to be versatile, so much so in fact, that it will allow 'illegal' moves to be done. Although the program knows how to do some concepts, it does not know the definition of most calls. It learns from you. If you try to do a call from a position that the program does not recognize, you are asked to move the dancers from their starting positions to their ending positions. You will also need to specify information such as each dancer's Roll-direction at the end of the call and whether or not each dancer is active at the end of the call. This information is saved in the snapshot database, and from then on the program can do that call from that position. Hence, over time, the snapshot database is personalized with your style of writing material. The program can generate resolves from the snapshot records that you entered. The program allows new calls to be added, and you can define your own spelling and abbreviation of calls.

CSDS also has 'fuzzy' call matching, meaning that the program can execute calls from positions in which dancers are not exactly on the required starting footprints for the call. Each dancer can be 1/2 of a position away from their required starting footprint and still be able to do the call. This feature allows calls such as Ping Pong Circulate to be done from Twin Diamond footprints as well as from 1/4 Tag footprints (in the first case, the outside dancers are not immediately adjacent, and in the second case, they are immediately adjacent).