"theStrings the Collection" is an interactive media-art work, which consists of three versions from each different viewpoint. The theme is "figure of sound" and "theStrings the Collection" expresses "figure of sound" based on each motif as an attractive real-time CG by inputted sound into a computer. One motif is synchronized swimming and Strings dance synchronized with sound. Two is echo and Strings create a sound tree echoing sound. Three is jewel and Strings train a sound jewel by sound. This paper is written about relations of sound and shape and motion in theStrings.