A resist composition which generates acid upon exposure and exhibits changed solubility in a developing solution under action of acid, including a base component which exhibits changed solubility in a developing solution under action of acid, and a photo-decomposable quencher containing a compound represented by general formula shown below. The apparatus comprises recording and reproducing means for recording and reproducing data in the form of alphanumeric information, diagram graphics, animation graphics, music, voice and other audio reproducible material. This may allow a user to execute the movement of the application icon in an easy, convenient manner. A frequency tracking loop for each of the plurality of channels outputs a channel lock indicator for each of the plurality of channels. The magnetic coupling has magnetic members that may be isolated from contact with fuel. The hand-held drums serve as both a means to generate noise or sound during an event in support of the event andor an entity or team participating in the event but also as souvenirs, mementos or keepsakes that remind the user of the entity or event.