======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '177'
                                          'artist'  'Frank Sinatra'
                                     'text_people'  ''
                                         'release'  'Sinatra 80th: All the Best Disc 1'
                                           'title'  '(Love Is) The Tender Trap'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
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 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '053'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '120.686'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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'TALB' (Album/Movie/Show title)                     'Sinatra 80th: All the Best Disc 1'
'TBPM' (BPM (beats per minute))                     '120.686'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         '(Love Is) The Tender Trap'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '178000'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Sinatra'
'TPUB' (Publisher)                                  'Capitol'
'TRCK' (Track number/Position in set)               '053'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.36 dB'
'TXXX:replaygain_track_peak'                        '0.544428'

========================== row from database ==========================
                                              'id'  1428844
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-053 - Frank Sinatra - (Love Is) The Tender Trap.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  177
                                           'genre'  prerock-swing
                                        'filesize'  7119478
                                           'mtime'  1620562561
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 053 prerock swing
                                      'tag_artist'  Frank Sinatra
                                     'tag_release'  Sinatra 80th: All the Best Disc 1
                                       'tag_title'  (Love Is) The Tender Trap
                                             'bpm'  120.686
                                    'search_title'  'is':3,4 'love':1,2 'tender':6 'the':5 'trap':7
                                   'search_artist'  'frank':1 'sinatra':2
                                  'search_release'  '1':8 '80th':2,3 'all':4 'best':6 'disc':7 'sinatra':1 'the':5
                                     'search_rest'  '00oldiepop':5 '1956':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'swing':8
                                    'search_combo'  '00oldiepop':22 '1':17C '1956':23 '80th':11C,12C 'all':13C 'best':15C 'country':21 'disc':16C 'exotica':19 'frank':8B 'is':3A,4A 'jazz':18 'love':1A,2A 'oldies':20 'prerock':24 'sinatra':9B,10C 'swing':25 'tender':6A 'the':5A,14C 'trap':7A
                                    'tag_tracknum'  53
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562560.8639057  (2021-05-09 14:16:00)
                             'size'  7119478