======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '382'
                                          'artist'  'Karlheinz Stockhausen'
                                     'text_people'  ''
                                         'release'  'OHM: The Early Gurus of Electronic Music'
                                           'title'  'Kontakte (edit)'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-2', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'avant garde', 'musicologist', 'earwaves', "
 "'electronic', 'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '16'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '142.6'
                                             'key'  '6A'
                                        'acoustid'  '886b3bcc-57eb-4bec-9948-6a4d19d59389'
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'OHM: The Early Gurus of Electronic Music'
'TBPM' (BPM (beats per minute))                     '142.6'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-04-25'
'TIT2' (Title/songname/content description)         'Kontakte (edit)'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Karlheinz Stockhausen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/3'
'TPUB' (Publisher)                                  'Ellipsis Arts...'
'TRCK' (Track number/Position in set)               '13/16'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Stockhausen, Karlheinz'
'TXXX:ASIN'                                         'B00004T0FZ'
'TXXX:Acoustid Id'                                  '886b3bcc-57eb-4bec-9948-6a4d19d59389'
'TXXX:BARCODE'                                      '052296367022'
'TXXX:CATALOGNUMBER'                                'CD3670'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '3e61da6a-6b77-3c92-b70e-ae170da0e0e3'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'fd09d776-ddfd-4558-afe7-814420d704ed'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['contemporary classical',
 'avant garde',
 'musicologist',
 'earwaves',
 'electronic',
 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.28 dB'
'TXXX:replaygain_track_peak'                        '0.997922'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'339cda3b-c2b2-4db9-a4ef-cd17bfd766e6')

========================== row from database ==========================
                                              'id'  396562
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Ohm - Early Gurus of Electronic Music/Disc 1/13 - karlheinz stockhausen - kontakte (edit), 1959-1960.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  382
                                           'genre'  electronic-experimental-early
                                        'filesize'  9185499
                                           'mtime'  1636921058
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Ohm Disc 1 13 karlheinz stockhausen kontakte (edit), 1959 1960 electronic experimental early
                                      'tag_artist'  Karlheinz Stockhausen
                                     'tag_release'  OHM: The Early Gurus of Electronic Music
                                       'tag_title'  Kontakte (edit)
                                             'bpm'  142.6
                                    'search_title'  'edit':2,3 'kontakte':1
                                   'search_artist'  'karlheinz':1 'stockhausen':2
                                  'search_release'  'early':4 'electronic':7 'gurus':5 'music':8 'of':6 'ohm':1,2 'the':3
                                     'search_rest'  '1':3 '1959':9 '1960':10 'disc':2 'early':13 'edit':7,8 'electronic':11 'experimental':12 'karlheinz':4 'kontakte':6 'ohm':1 'stockhausen':5
                                    'search_combo'  '1':16 '1959':22 '1960':23 'disc':15 'early':9C,26 'edit':2A,3A,20,21 'electronic':12C,24 'experimental':25 'gurus':10C 'karlheinz':4B,17 'kontakte':1A,19 'music':13C 'of':11C 'ohm':6C,7C,14 'stockhausen':5B,18 'the':8C
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'avant garde', 'musicologist', 'earwaves', 'electronic', 'experimental']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636921057.831465  (2021-11-14 21:17:37)
                             'size'  9185499