======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '185'
                                          'artist'  'Harry Belafonte'
                                     'text_people'  ''
                                         'release'  'All Time Greatest Hits, Vol. 1'
                                           'title'  'Banana Boat (Day-O)'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'calypso', 'folk', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '051'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '124.468'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'All Time Greatest Hits, Vol. 1'
'TBPM' (BPM (beats per minute))                     '124.468'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Banana Boat (Day-O)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry Belafonte'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '051'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'calypso', 'folk', 'oldies', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.67 dB'
'TXXX:replaygain_track_peak'                        '0.826430'

========================== row from database ==========================
                                              'id'  1451572
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-051 - Harry Belafonte - Banana Boat (Day-O).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  185
                                           'genre'  prerock-unsorted
                                        'filesize'  7417738
                                           'mtime'  1620387684
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 051 prerock unsorted
                                      'tag_artist'  Harry Belafonte
                                     'tag_release'  All Time Greatest Hits, Vol. 1
                                       'tag_title'  Banana Boat (Day-O)
                                             'bpm'  124.468
                                    'search_title'  'banana':1 'boat':2 'day':3 'dayo':5 'o':4
                                   'search_artist'  'belafonte':2 'harry':1
                                  'search_release'  '1':8 'all':1 'greatest':3 'hits':4,5 'time':2 'vol':6,7
                                     'search_rest'  '00oldiepop':5 '1957':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':20 '1':15C '1957':21 'all':8C 'banana':1A 'belafonte':7B 'boat':2A 'country':19 'day':3A 'dayo':5A 'exotica':17 'greatest':10C 'harry':6B 'hits':11C,12C 'jazz':16 'o':4A 'oldies':18 'prerock':22 'time':9C 'unsorted':23 'vol':13C,14C
                                    'tag_tracknum'  51
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-1', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['60s', 'calypso', 'folk', 'oldies', 'swing']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387684.023106  (2021-05-07 13:41:24)
                             'size'  7417738