======================== unified (from filesystem) ========================
                                         'bitrate'  '191.974'
                                        'duration'  '191'
                                          'artist'  'Smokie'
                                     'text_people'  ''
                                         'release'  'The Very Best of Smokie'
                                           'title'  "I'll Meet You at Midnight"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['oldies', 'pop', '70s', 'rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '21'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '128.822'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Very Best of Smokie'
'TBPM' (BPM (beats per minute))                     '128.822'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         "I'll Meet You at Midnight"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Smokie'
'TPE2' (Band/orchestra/accompaniment)               'Smokie'
'TRCK' (Track number/Position in set)               '17/21'
'TSOP' (Performer sort order)                       'Smokie'
'TXXX:ALBUMARTISTSORT'                              'Smokie'
'TXXX:ASIN'                                         'B000060MEP'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:lastfmtags'                                   ['oldies', 'pop', '70s', 'rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+5.30 dB'
'TXXX:replaygain_track_peak'                        '0.281903'

========================== row from database ==========================
                                              'id'  1496743
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Smokie-The Collection-14-I_ll Meet You At Midnight.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  191
                                           'genre'  rock-cppex
                                        'filesize'  4605041
                                           'mtime'  1620737431
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Collection 14 I_ll At rock cppex
                                      'tag_artist'  Smokie
                                     'tag_release'  The Very Best of Smokie
                                       'tag_title'  I'll Meet You at Midnight
                                             'bpm'  128.822
                                    'search_title'  'at':6 'i':1 'ill':3 'll':2 'meet':4 'midnight':7 'you':5
                                   'search_artist'  'smokie':1
                                  'search_release'  'best':3 'of':4 'smokie':5 'the':1 'very':2
                                     'search_rest'  '00poprockelectronic':1 'at':10 'collection':7 'cppex':12 'files':5,6 'i':8 'll':9 'loose':3,4 'rock':11 'unsorted':2
                                    'search_combo'  '00poprockelectronic':14 'at':6A,23 'best':11C 'collection':20 'cppex':25 'files':18,19 'i':1A,21 'ill':3A 'll':2A,22 'loose':16,17 'meet':4A 'midnight':7A 'of':12C 'rock':24 'smokie':8B,13C 'the':9C 'unsorted':15 'very':10C 'you':5A
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'pop', '70s', 'rock', 'classic rock']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737430.7345946  (2021-05-11 14:50:30)
                             'size'  4605041