Java 160 melody class gettitle
An Accidental indicates whether a note is sharp, flat, or neither using the constants Accidental.SHARP, Accidental.FLAT, and Accidental.NATURAL respectively.A Pitch is a constant from Pitch.A through Pitch.G or Pitch.R, meaning the frequency of the note.The Note uses two types of enums named Pitch and Accidental. Each Note object also uses a boolean field to keep track of whether it is the first or last note of a repeated section of the melody. It keeps track of the length (duration) of the note in seconds as a double, the note's pitch (A-G, or R if the note is a rest), the octave as an int, and the accidental (sharp, natural or flat). A Note object represents a single musical note that will form part of a melody.
You are given a supplier class named Note that your Melody class will use. Our format does not allow nested repetition, nor sections that repeat more than twice. In the example at right, notes 3-5 and 9-12 (lines 5-7 and 11-14) represent two repeated sections. The final token indicates whether the note is the start or stop of a repeated section: true if so, and false otherwise. (For a rest, the octave and accidental are omitted.) The fourth is the note's accidental value of sharp, flat, or natural. The third token is the octave that the note is in. The next letter describes the pitch of the note, using the standard letters A-G or R for a rest. The first number on each line describes the duration of the note in seconds. Each subsequent line represents a single note in the following format: The first two lines contain the song title and song artist, respectively. Since it would be difficult for us to read input in this style, we will read input from a text file in a specific format.Īn example input file is shown at right. Their position in relation to the lines determines their pitch and their tops, among other things, determine their length. Input File Format Music is usually printed like the example sheet music at right.
Your Melody class will read files in a format described below and represent the song's notes using an ArrayList of Note objects. It may have repeated sections since we don't like redundancy, we will only store one copy of a repeated chunk of notes.
JAVA 160 MELODY CLASS GETTITLE SERIES
You will write a Melody class that uses a list to represent a song comprised of a series of notes. You do not need to understand any more than this about scientific pitch notation, but you can read more about it here: For example, middle C is represented as C4. This style of notation represents each note as a letter and a number specifying the octave it belongs to. Music also has silences that are called rests.įor this program we will be representing notes using scientific pitch notation. We normally notate this by calling them sharp, flat, or natural. Each set of 7 notes is considered one octave. 7 notes is not enough to play very interesting music, so there are multiple octaves after we reach note G we start over at A. The pitch of a note is described with a letter ranging from A to G. A song consists of notes, each of which has a length (duration) and pitch. Afterwards, your program will play music from a text file. You will complete this project by implementing one class.