def _convertMainLoop(self, track_id):
'''Function that iterates over tracks to convert them.'''
t00 = time.time(); # Get time for start of iteration over tracks
self.__cnt = 0; # Reset the count for cnt attribute
for track in track_id: # Iterate over all tracks
info = self.itunes_data['Tracks'][track]; # Get the information about the track
proc = self._processChecker(); # Block to ensure there aren't too many process
proc = Thread(target = self._convertThread, args = (info,) ); # Initialize thread
proc.start(); # Start thread
self.process.append( proc ); # Append thread to process list
while len(self.process) > 0: # While there are processes left int he process attribute
proc = self.process.pop(); # Pop processes off the process attribute list
try: # Try to
proc.join(); # Join the process
except: # On exception
proc.communicate(); # Communicate with process
if self.verbose: # If verbose
print( 'Elapsed: {} {}'.format( round((time.time()-t00)/60),'min' ) ); # Print elapsed time if verbose is true
if self.gui: print( 'Waiting for GUI to close...' );
