player must hold down the L button while playing specified notes to change them to a sharp, and hold down the R button at other notes to raise them one octave; some notes combine both of these functions to raise a sharp note an octave. In addition, the drum set sometimes requires the player to hit two notes at once, and the touch screen portions must be played manually; at this point the game receives a drastic increase in difficulty, and essentially turns the Nintendo DS into a musical instrument. As a song progresses, the top screen scrolls through one bar at a time (one stretching across the screen horizontally, and the next few bars shown below it). A cursor moves to show where in the song the player currently is, and as the cursor moves over a note's "head", the aim is to press the button displayed on that head, and if necessary holding it down until the end of the "tail". Some long notes will have a tail extending across multiple bars, and very short ones will have none at all. Successfully hit the buttons at the proper time and it'll make an excellent piece of music, but hit it at the wrong time and it'll sound like a jumbled mess. As in many music/rhythm-based games, every single note is given a title based on the accuracy, and the more accurate notes increase the score by more. These ranks are Best (perfect timing), Good (slightly too fast or slow), Bad (the note's head will not disappear; much too fast or slow) and Miss (the correct note was not played at all, or stopped before the end of the tail). At the end of a song, the score is calculated as a number out of 100. In Free Play Mode the player scrolls through the songs using up and down on the D-Pad, and selects a part from the list using the touch screen. Listed with the instrument name will be a star difficulty level from 1 to 5. In Amateur and Pro modes (which are judged separately and toggled via a switch on the title screen), the player's score is recorded and appears next to the instrument of the song. Progression through the game is done in the Recording Ticket mode, a single player mode where the player must play three randomly selected songs, depending on the ticket