One Quickie

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Serializing with TouchJSON (JSON->General)

    #import "CJSONSerializer.h"

    NSArray *allSongs = [self allSongs];
    NSString *jsonString = [[CJSONSerializer serializer] serializeObject: allSongs];
    NSData *data = [jsonString dataUsingEncoding: NSUTF8StringEncoding];
    // write |data| to a file, send over the network, etc