======================== unified (from filesystem) ========================
                                         'bitrate'  '192.016'
                                        'duration'  '158'
                                          'artist'  'The Checkers'
                                     'text_people'  ''
                                         'release'  'Great Googa Mooga: King/Federal/DeLuxe Vocal Groups'
                                           'title'  "I Wasn't Thinkin', I Was Drinkin'"
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['doo wop', 'usa', 'japanese', 'oldies', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '20'
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '124.315'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x12\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x12\x00\x00')
'PRIV:PeakValue:!x\x00\x00'                         PRIV(owner='PeakValue', data=b'!x\x00\x00')
'TALB' (Album/Movie/Show title)                     'Great Googa Mooga: King/Federal/DeLuxe Vocal Groups'
'TBPM' (BPM (beats per minute))                     '124.315'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1954'
'TENC' (Encoded by)                                 'Amadeus II'
'TIT2' (Title/songname/content description)         "I Wasn't Thinkin', I Was Drinkin'"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Checkers'
'TRCK' (Track number/Position in set)               '3/20'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['doo wop', 'usa', 'japanese', 'oldies', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.02 dB'
'TXXX:replaygain_track_peak'                        '0.469426'

========================== row from database ==========================
                                              'id'  1511655
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/The Checkers - I Wasn_t Thinkin_, I Was Drinkin_.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  158
                                           'genre'  set-th-candy
                                        'filesize'  3817136
                                           'mtime'  1620343127
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets Wasn_t Thinkin_, Drinkin_ set th candy
                                      'tag_artist'  The Checkers
                                     'tag_release'  Great Googa Mooga: King/Federal/DeLuxe Vocal Groups
                                       'tag_title'  I Wasn't Thinkin', I Was Drinkin'
                                             'bpm'  124.315
                                    'search_title'  'drinkin':8,9 'i':1 't':3 'thinkin':5,6 'was':7 'wasn':2 'wasnt':4
                                   'search_artist'  'checkers':2 'the':1
                                  'search_release'  'de':13 'deluxe':7 'federal':6,12 'googa':2 'great':1 'groups':10 'king':5,11 'kingfederalde':14 'kingfederaldeluxe':8 'luxe':15 'mooga':3,4 'vocal':9
                                     'search_rest'  'candy':13 'country':4 'drinkin':10 'exotica':2 'jazz':1 'oldies':3 'set':11 'sweets':5 't':7 'th':12 'thinkin':8,9 'wasn':6
                                    'search_combo'  'candy':39 'checkers':11B 'country':30 'de':24C 'deluxe':18C 'drinkin':8A,9A,36 'exotica':28 'federal':17C,23C 'googa':13C 'great':12C 'groups':21C 'i':1A 'jazz':27 'king':16C,22C 'kingfederalde':25C 'kingfederaldeluxe':19C 'luxe':26C 'mooga':14C,15C 'oldies':29 'set':37 'sweets':31 't':3A,33 'th':38 'the':10B 'thinkin':5A,6A,34,35 'vocal':20C 'was':7A 'wasn':2A,32 'wasnt':4A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['doo wop', 'usa', 'japanese', 'oldies', 'rock']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343126.9124284  (2021-05-07 01:18:46)
                             'size'  3817136