======================== unified (from filesystem) ========================
                                         'bitrate'  '248.47'
                                        'duration'  '326'
                                          'artist'  'Grandaddy'
                                     'text_people'  ''
                                         'release'  'Under The Western Freeway'
                                           'title'  'Collective Dreamwish of Upperclass Elegance'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'alternative', 'indie rock', 'rock']"
                                     'discogstags'  "['rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '11'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '84.140'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000002E5 00000381 00001A12'
'COMM:iTunNORM:eng'                                 (' 000002E5 00000381 00001A12 00001C00 000353AB 0001F754 00007A10 00007AD0 '
 '00010F04 00035394')
'TALB' (Album/Movie/Show title)                     'Under The Western Freeway'
'TBPM' (BPM (beats per minute))                     '84.140'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Collective Dreamwish of Upperclass Elegance'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Grandaddy'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'indie rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.13 dB'
'TXXX:replaygain_track_peak'                        '0.502601'

========================== row from database ==========================
                                              'id'  1273821
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Grandaddy/Grandaddy - Under The Western Freeway (1997)/03 Collective Dreamwish of Upperclas.mp3
                                         'working'  None
                                         'bitrate'  248
                                    'duration_sec'  326
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  10158259
                                           'mtime'  1621697508
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos (1997) 03 ifs songwriter indie rock
                                      'tag_artist'  Grandaddy
                                     'tag_release'  Under The Western Freeway
                                       'tag_title'  Collective Dreamwish of Upperclass Elegance
                                             'bpm'  84.14
                                    'search_title'  'collective':1 'dreamwish':2 'elegance':5 'of':3 'upperclass':4
                                   'search_artist'  'grandaddy':1
                                  'search_release'  'freeway':4 'the':2 'under':1 'western':3
                                     'search_rest'  '00singer':1 '1997':4,5 'eos':3 'ifs':6 'indie':7 'rock':8 'songwriter':2
                                    'search_combo'  '00singer':11 '1997':14,15 'collective':1A 'dreamwish':2A 'elegance':5A 'eos':13 'freeway':10C 'grandaddy':6B 'ifs':16 'indie':17 'of':3A 'rock':18 'songwriter':12 'the':8C 'under':7C 'upperclass':4A 'western':9C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'indie rock', 'rock']
                                        'tag_date'  1997
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697507.5463088  (2021-05-22 17:31:47)
                             'size'  10158259