 Again, although such a person may attribute their stronger tone and playing style to "phantom practicing", other factors such as increased confidence may have caused the improvements.During the interval of not practicing, a person purporting to have experienced "phantom practicing" may have developed other factors besides instrument practicing which contribute to the quality of musical performance, such as rhythmic skill.For example, a drummer who abandons music in their teens, and then studies dancing in their 30s may find, if they return to drumming in their 40s, that their sense of rhythm has improved.