subfourth
subfourth is a term that can refer to several different concepts, primarily in the realm of mathematics and music theory. In mathematics, "subfourth" might informally describe a fraction where the denominator is a multiple of four, such as 1/8 or 3/12. It's not a standard mathematical term but could be used in specific contexts to denote a subdivision related to quarters.
In music theory, "subfourth" can relate to intervals. The interval of a fourth is a fundamental building
Another, less common, interpretation of "subfourth" could be in the context of time signatures in music, perhaps