======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '124'
                                          'artist'  'Fats Domino'
                                     'text_people'  ''
                                         'release'  'They Call Me the Fat Man: The Legendary Imperial Recordings (2 of 4)'
                                           'title'  "What's the Reason (I'm Not Pleasing You?)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '279'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '96.899'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'They Call Me the Fat Man: The Legendary Imperial Recordings (2 of 4)'
'TBPM' (BPM (beats per minute))                     '96.899'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         "What's the Reason (I'm Not Pleasing You?)"
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '124447'
'TPE1' (Lead performer(s)/Soloist(s))               'Fats Domino'
'TRCK' (Track number/Position in set)               '279'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.81 dB'
'TXXX:replaygain_track_peak'                        '0.999605'

========================== row from database ==========================
                                              'id'  1499728
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-279 - Fats Domino - What_s the Reason (I_m Not Pleasing You).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  124
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  4979942
                                           'mtime'  1622659473
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 279 What_s (I_m You) rock pop early rocknroll
                                      'tag_artist'  Fats Domino
                                     'tag_release'  They Call Me the Fat Man: The Legendary Imperial Recordings (2 of 4)
                                       'tag_title'  What's the Reason (I'm Not Pleasing You?)
                                             'bpm'  96.899
                                    'search_title'  'i':6 'im':8 'm':7 'not':9 'pleasing':10 'reason':5 's':2 'the':4 'what':1 'whats':3 'you':11,12
                                   'search_artist'  'domino':2 'fats':1
                                  'search_release'  '2':11,12 '4':14,15 'call':2 'fat':5 'imperial':9 'legendary':8 'man':6,7 'me':3 'of':13 'recordings':10 'the':4 'they':1
                                     'search_rest'  '00oldiepop':5 '1957':6 '279':7 'country':4 'early':18 'exotica':2 'i':10,12 'jazz':1 'm':11,13 'oldies':3 'pop':17 'rock':16 'rocknroll':19 's':9 'what':8 'you':14,15
                                    'search_combo'  '00oldiepop':34 '1957':35 '2':25C,26C '279':36 '4':28C,29C 'call':16C 'country':33 'domino':14B 'early':47 'exotica':31 'fat':19C 'fats':13B 'i':6A,39,41 'im':8A 'imperial':23C 'jazz':30 'legendary':22C 'm':7A,40,42 'man':20C,21C 'me':17C 'not':9A 'of':27C 'oldies':32 'pleasing':10A 'pop':46 'reason':5A 'recordings':24C 'rock':45 'rocknroll':48 's':2A,38 'the':4A,18C 'they':15C 'what':1A,37 'whats':3A 'you':11A,12A,43,44
                                    'tag_tracknum'  279
                                      'num_images'  0
                                             'key'  1A
                                           '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-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659473.362336  (2021-06-02 20:44:33)
                             'size'  4979942