======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '90'
                                          'artist'  'Boom Boom Satellites'
                                     'text_people'  ''
                                         'release'  'ON'
                                           'title'  'id'
                                           'quals'  ("['Q-HAP-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['techno', 'electronic', 'japanese', 'j rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '140.044'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'ON'
'TBPM' (BPM (beats per minute))                     '140.044'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'id'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Boom Boom Satellites'
'TPE2' (Band/orchestra/accompaniment)               'Boom Boom Satellites'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['techno', 'electronic', 'japanese', 'j rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.99 dB'
'TXXX:replaygain_track_peak'                        '0.457669'

========================== row from database ==========================
                                              'id'  1326324
                                            'path'  /data/Music/Bulk/00poprockelectronic/Boom Boom Satellites/04-id.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  90
                                           'genre'  electronic-experimental
                                        'filesize'  2165250
                                           'mtime'  1622801601
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04 electronic experimental
                                      'tag_artist'  Boom Boom Satellites
                                     'tag_release'  ON
                                       'tag_title'  id
                                             'bpm'  140.044
                                    'search_title'  'id':1
                                   'search_artist'  'boom':1 'satellites':2
                                  'search_release'  'on':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':2 'experimental':3
                                    'search_combo'  '00poprockelectronic':5 'boom':2B 'electronic':6 'experimental':7 'id':1A 'on':4C 'satellites':3B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['techno', 'electronic', 'japanese', 'j rock', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622801600.8358476  (2021-06-04 12:13:20)
                             'size'  2165250