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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def load_sound_font(self, sf2):
 """Load a sound font. Return True on success, False on failure. This function should be called before your audio can be played, since the instruments are kept in the sf2 file. """

        self.sfid = self.fs.sfload(sf2)
        return not self.sfid == -1