def xtestSnippetShow(self): ''' testing a fake snippet in and MusicXML out ''' block1 = ['e4 f g a', 'g4 a b cc', '', 'no-cadence', '2/4'] bs = BallataSheet() dummyPiece = bs.makeWork(2) block2 = dummyPiece.convertBlockToStreams(block1) unused_fpc1 = polyphonicSnippet.FrontPaddedSnippet(block2, dummyPiece)
def getSnippetAtPosition(self, snippetPosition, snippetType="end"): ''' gets a "snippet" which is a collection of up to 3 lines of music, a timeSignature and a description of the cadence. >>> bs = alpha.trecento.cadencebook.BallataSheet() >>> accur = bs.makeWork(2) >>> print(accur.getSnippetAtPosition(12)) <music21.alpha.trecento.polyphonicSnippet.FrontPaddedSnippet ...> ''' if self.rowvalues[snippetPosition].strip() != "": thisBlock = self.rowvalues[snippetPosition:snippetPosition + 5] if thisBlock[4].strip() == "": if self.timeSigBegin == "": return None ## need a timesig thisBlock[4] = self.timeSigBegin blockOut = self.convertBlockToStreams(thisBlock) if snippetType == 'begin': return polyphonicSnippet.Incipit(blockOut, self) else: return polyphonicSnippet.FrontPaddedSnippet(blockOut, self)