======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '266'
                                          'artist'  'Soul Asylum'
                                     'text_people'  ''
                                         'release'  "90's One Hit Wonders"
                                           'title'  'Runaway Train'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'grunge', 'rock']"
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'rock-gr-grunge'
                                             'bpm'  '117.535'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "90's One Hit Wonders"
'TBPM' (BPM (beats per minute))                     '117.535'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-grunge'
'TDRC' (Recording time)                             '1990'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Runaway Train'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Soul Asylum'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Sbme Special MKTS.'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME.EXE -h -b 320'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.19 dB'
'TXXX:replaygain_track_peak'                        '0.499470'

========================== row from database ==========================
                                              'id'  1340098
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/Runaway Train.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  266
                                           'genre'  rock-gr-grunge
                                        'filesize'  10798652
                                           'mtime'  1636902862
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s rock gr grunge
                                      'tag_artist'  Soul Asylum
                                     'tag_release'  90's One Hit Wonders
                                       'tag_title'  Runaway Train
                                             'bpm'  117.535
                                    'search_title'  'runaway':1 'train':2
                                   'search_artist'  'asylum':2 'soul':1
                                  'search_release'  '90':1 '90s':3 'hit':5 'one':4 's':2 'wonders':6
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'gr':4 'grunge':5 'rock':3
                                    'search_combo'  '00poprockelectronic':11 '90':5C '90s':7C,12 'asylum':4B 'gr':14 'grunge':15 'hit':9C 'one':8C 'rock':13 'runaway':1A 's':6C 'soul':3B 'train':2A 'wonders':10C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
                                        'tag_date'  1990
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1636902861.6196342  (2021-11-14 16:14:21)
                             'size'  10798652