======================== unified (from filesystem) ========================
                                         'bitrate'  '229.048'
                                        'duration'  '291'
                                          'artist'  'Mzm'
                                     'text_people'  ''
                                         'release'  'Pitchfork: The Top 500 Tracks of the 2000s'
                                           'title'  'Green Grass of Tunnel'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', "
 "'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['ambient', 'electronic', 'icelandic', 'post-rock', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '484'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '90.090'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pitchfork: The Top 500 Tracks of the 2000s'
'TBPM' (BPM (beats per minute))                     '90.090'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Green Grass of Tunnel'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mzm'
'TRCK' (Track number/Position in set)               '484'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['ambient', 'electronic', 'icelandic', 'post-rock', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+11.63 dB'
'TXXX:replaygain_track_peak'                        '0.128894'

========================== row from database ==========================
                                              'id'  1360790
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/484 - Múm - Green Grass of Tunnel.mp3
                                         'working'  None
                                         'bitrate'  229
                                    'duration_sec'  291
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  8354750
                                           'mtime'  1620573312
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA 484 Múm electronic generic radio unsorted
                                      'tag_artist'  Mzm
                                     'tag_release'  Pitchfork: The Top 500 Tracks of the 2000s
                                       'tag_title'  Green Grass of Tunnel
                                             'bpm'  90.09
                                    'search_title'  'grass':2 'green':1 'of':3 'tunnel':4
                                   'search_artist'  'mzm':1
                                  'search_release'  '2000s':8 '500':5 'of':7 'pitchfork':1,2 'the':3 'top':4 'tracks':6
                                     'search_rest'  '00poprockelectronic':1 '484':3 'electronic':6 'generic':7 'mum':4,5 'radio':8 'unsorted':9 'va':2
                                    'search_combo'  '00poprockelectronic':14 '2000s':13C '484':16 '500':10C 'electronic':19 'generic':20 'grass':2A 'green':1A 'mum':17,18 'mzm':5B 'of':3A,12C 'pitchfork':6C,7C 'radio':21 'the':8C 'top':9C 'tracks':11C 'tunnel':4A 'unsorted':22 'va':15
                                    'tag_tracknum'  484
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['ambient', 'electronic', 'icelandic', 'post-rock', 'experimental']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573311.9036725  (2021-05-09 17:15:11)
                             'size'  8354750