wrong lsb message before every program change

[snsllrs]

here:

print "Sending program change to program %d..." % program_number
# Bank change (fine) to (program_number / 128)
midiout.send_message([
CC_CHANNEL_OFFSET + midi_channel,
0x20,
int(program_number / 128),
])

it's better to add bank_number in command line arguments like this:

1. recommended changes in midi_helpers.py:

def set_program_number(midiout, midi_channel, program_number, bank_number):
if bank_number is not None:
print "Sending bank change to bank %d..." % bank_number
# Bank change (fine) to bank_number % 128
midiout.send_message([
CC_CHANNEL_OFFSET + midi_channel,
0x20,
bank_number % 128,
])
if program_number is not None:
print "Sending program change to program %d..." % program_number
# Program change to program number % 128
midiout.send_message([
CHANNEL_OFFSET + midi_channel,
0xC0,
program_number % 128,
])

# All notes off, but like, a lot
for _ in xrange(0, 2):
    all_notes_off(midiout, midi_channel)

time.sleep(0.5)

2. recommended changes in record.py

   sampling_options.add_argument(
   '--program-number', type=int,
   help='switch to a program number before recording')
   sampling_options.add_argument(
   '--bank-number', type=int,
   help='switch to a bank number before recording')

3 recommended changes in record.py

def sample_program(
output_folder='foo',
low_key=21,
high_key=109,
max_attempts=8,
midi_channel=1,
midi_port_name=None,
midi_port_index=None,
audio_interface_name=None,
audio_interface_index=None,
cc_before=None,
program_number=None,
bank_number=None,
cc_after=None,
flac=True,
velocity_levels=VELOCITIES,
key_range=1,
cleanup_aif_files=True,
limit=None,
looping_enabled=False,
print_progress=False,
has_portamento=False,
sample_asc=False,
sample_rate=SAMPLE_RATE,
):

and

set_program_number(midiout, midi_channel, program_number, bank_number)

So you can change bank number as you wish with --bank_number argument.