======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '871'
                                          'artist'  'Global Communication'
                                     'text_people'  ''
                                         'release'  '76-14'
                                           'title'  '14 31'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['electronica', 'downtempo', 'electronic', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '114.8'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '76-14'
'TBPM' (BPM (beats per minute))                     '114.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         '14 31'
'TKEY' (Initial key)                                '2A'
'TLEN' (Length)                                     '871000'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Global Communication'
'TRCK' (Track number/Position in set)               '02'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'downtempo', 'electronic', 'chillout', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.81 dB'
'TXXX:replaygain_track_peak'                        '0.811942'

========================== row from database ==========================
                                              'id'  1476849
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Strokes/The Strokes/14-31.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  871
                                           'genre'  electronic-th-techno
                                        'filesize'  13952896
                                           'mtime'  1620647000
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos The Strokes The Strokes electronic th techno
                                      'tag_artist'  Global Communication
                                     'tag_release'  76-14
                                       'tag_title'  14 31
                                             'bpm'  114.8
                                    'search_title'  '31':1
                                   'search_artist'  'communication':2 'global':1
                                  'search_release'  '14':2 '76':1 '7614':3
                                     'search_rest'  '00singer':1 'electronic':6 'eos':3 'songwriter':2 'strokes':5 'techno':8 'th':7 'the':4
                                    'search_combo'  '00singer':7 '14':5C '31':1A '76':4C '7614':6C 'communication':3B 'electronic':12 'eos':9 'global':2B 'songwriter':8 'strokes':11 'techno':14 'th':13 'the':10
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-4', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'downtempo', 'electronic', 'chillout', 'ambient']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620647000.120639  (2021-05-10 13:43:20)
                             'size'  13952896