======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '174'
                                          'artist'  'Serial Experiments Lain'
                                     'text_people'  ''
                                         'release'  'Serial Experiments Lain - OST 01'
                                           'title'  'Inner Vision'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['ost', 'japanese', 'soundtrack', 'anime', 'lain', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '145.895'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Serial Experiments Lain - OST 01'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TIT2' (Title/songname/content description)         'Inner Vision'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Serial Experiments Lain'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['ost', 'japanese', 'soundtrack', 'anime', 'lain', 'electronic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+36.26 dB'
'TXXX:replaygain_track_peak'                        '0.010454'

========================== row from database ==========================
                                              'id'  1318796
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Serial Experiments Lain__Serial Experiments Lain - OST 01__03 - Inner Vision.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  174
                                           'genre'  soundtrack-video
                                        'filesize'  2800547
                                           'mtime'  1620331869
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Lain__Serial 01__03 soundtrack video
                                      'tag_artist'  Serial Experiments Lain
                                     'tag_release'  Serial Experiments Lain - OST 01
                                       'tag_title'  Inner Vision
                                             'bpm'  145.895
                                    'search_title'  'inner':1 'vision':2
                                   'search_artist'  'experiments':2 'lain':3 'serial':1
                                  'search_release'  'experiments':2 'lain':3 'ost':4 'serial':1
                                     'search_rest'  '00poprockelectronic':1 '01':9 '03':10 'files':5,6 'lain':7 'loose':3,4 'serial':8 'soundtrack':11 'unsorted':2 'video':12
                                    'search_combo'  '00poprockelectronic':10 '01':18 '03':19 'experiments':4B,7C 'files':14,15 'inner':1A 'lain':5B,8C,16 'loose':12,13 'ost':9C 'serial':3B,6C,17 'soundtrack':20 'unsorted':11 'video':21 'vision':2A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-4', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['ost', 'japanese', 'soundtrack', 'anime', 'lain', 'electronic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620331868.9864554  (2021-05-06 22:11:08)
                             'size'  2800547