Tenuto is a musical term that indicates a note should be held for its full value, emphasizing its duration. It is often represented by a horizontal line placed above or below the note in sheet music. This technique helps musicians convey a sense of weight and importance to specific notes within a piece. In addition to its musical meaning, Tenuto is also the name of a popular app designed for music students. The app offers tools for practicing music theory, ear training, and sight-reading, making it a valuable resource for learners at all levels.