Questions on HW4-Spring08

Questions on HW4-Spring08

Ask questions on Homework 4 here:

Question: How do you create a chord? Or should we just avoid doing those and stick to the melody?

Check out the JMusic documentation on Phrase . There is an addChord method you can use. Dawn Finney.

Question: Are we supposed to create a main method in AdvancedSongREMOVEDst, and insantiate new phrases and nodes inside of it, such as with the ContactEntry and ContactNode being put into ContactREMOVEDst, and then put just AdvancedSongREMOVEDst in the class we create to play our song?

No. The main method goes in the new class (MySong or similiar) and you create new nodes and lists in there. Dawn Finney.

Question: Is there any way to create a rest of a specified length within a node? For example, if we need an eighth note or quarter note rest in between notes, is there a way to input that within your "JMC.C5, JMC.QN" data?

Use JMC.REST as your actual note or pitch in this case. To get a eighth rest, quarter rest or a half note, you would do the following pairs:
JMC.REST, JMC.EN
JMC.REST, JMC.QN
JMC.REST, JMC.HN
Respectively. Dawn Finney.

Question: I'm not sure what private data my new song (previously referred to as MySong) needs to contain. Whenever I try to create new lists and nodes and such, it keeps telling me the variables I'm calling from inside the other programs (such as the phrases I created) cannot be found in MySong.

It doesn't need any private data. Stop making the homework harder than it actually is. Dawn Finney.

Question: I'm not sure which constructors the class for my song is supposed to have. What is supposed to be null for the default constructor? Does the other constructor take in the list??

No constructor is needed. Java always provides a default constructor for you if none are specified. Dawn Finney.

Question: What does it mean by "illegal initializer for double"? I'm having trouble making the addChord run the right way.

You're initializing wrong is all I can get from this line. You need to be more specific if you want me to help you. Dawn Finney.

Question: AdvancedSongNode's constructor takes in Phrase phrase. Shouldn't it take in AdvancedSongPhrase phrase?

It actually supposed to take in a Phrase. AdvancedSongPhrase methods are still supposed to return Phrases. Dawn Finney

Question: Say I have the following nodes, and I want them to be in the following order:
verse, chorus, verse, chorus, bridge, chorus
Is there a way to prevent the list method from choking since the first two nodes are referencing each other?

This a good place to use something like weave or can manually add copies. There is a copy method provided in AdvancedSongNode. Dawn Finney.

Question: Where can I find basic information on the notation system (like what exactly "C5" means?)? It is not in the slides and not in the book.

We gave a link to Wikipedia for reading treble clef. Middle C is C5. Dawn Finney.

Question: Also, are we supposed to be transposing an existing song, or writing our own, or modifying an existing piece of music?

The first or second. Preferably the first. Dawn Finney.

Question: When I run the code, it plays all the music but it does not show all the notes, how do i get it to show everything?

JMusic bug. Don't worry about it. Dawn Finney.

Question: So are we actually using AdvancedSongNodes and AdvancedSongREMOVEDst files? ... or is it okay if everything works fine w/o it?

No you can not work without them. Dawn Finney.

is there a way to change the time signature in the middle of a song, say from 4/4 to 2/4
Where do we find the example of weave that we are supposed to go by?

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Homeworks-Spring 2008 last edited on 14 April 2008 at 11:35 am by lawn-128-61-18-61.lawn.gatech.edu