Abstract: A media system and method of accessing music data files are provided. The media system includes a memory storage device, wherein a plurality of music data files are accessed based upon classifications that correspond to a plurality of categories that have a successive relationship to one another. A processor performs the steps including selecting a first category, selecting at least a portion of the music data files based upon the first category, and displaying at least one classification that corresponds to the first category. The processor further performs the steps of receiving a command to select one of the displayed classifications, selecting at least a portion of the music data files based upon the selected classification and a second category, and displaying at least one classification associated with the selected music data files, wherein the displayed classification is based upon the first category, the second category, and the selected classification.

Abstract: The present invention provides a method for maximizing the use of a display screen space of an electronic device, such as a portable calculator or a mobile phone. The present invention involves providing a display screen electronically formatted to contain a plurality of multi-purpose fields that accommodates a variety of functions such as displaying operation or field labels, receiving data input, displaying data output, or facilitating editing. The present method allows the field labels to be replaced by data entry field, essentially by overwriting in the same screen area. The present invention further provides an electronic device capable of performing the method for maximizing the use of a display screen space described herein.