======================== unified (from filesystem) ========================
                                         'bitrate'  '181.528'
                                        'duration'  '228'
                                          'artist'  'The Meantraitors'
                                     'text_people'  ''
                                         'release'  'Guts For Sale'
                                           'title'  'Boys Will Be Boys'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['russian', 'psychobilly', 'punk', 'rockabilly']"
                                     'discogstags'  "['psychobilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '93.933'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Guts For Sale'
'TBPM' (BPM (beats per minute))                     '93.933'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Boys Will Be Boys'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Meantraitors'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['psychobilly', 'rock']
'TXXX:lastfmtags'                                   ['russian', 'psychobilly', 'punk', 'rockabilly']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.98 dB'
'TXXX:replaygain_track_peak'                        '0.386096'

========================== row from database ==========================
                                              'id'  1346224
                                            'path'  /data/Music/Bulk/00poprockelectronic/musica/Meantraitors/1999 -  guts for sale/07 - Boys Will Be Boys.mp3
                                         'working'  None
                                         'bitrate'  181
                                    'duration_sec'  228
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  5197696
                                           'mtime'  1620526582
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic musica 1999 guts for sale 07 rock rockabilly psychobilly
                                      'tag_artist'  The Meantraitors
                                     'tag_release'  Guts For Sale
                                       'tag_title'  Boys Will Be Boys
                                             'bpm'  93.933
                                    'search_title'  'be':3 'boys':1 'will':2
                                   'search_artist'  'meantraitors':2 'the':1
                                  'search_release'  'for':2 'guts':1 'sale':3
                                     'search_rest'  '00poprockelectronic':1 '1999':3 'for':5 'guts':4 'musica':2 'psychobilly':9 'rock':7 'rockabilly':8 'sale':6
                                    'search_combo'  '00poprockelectronic':9 '1999':11 'be':3A 'boys':1A 'for':7C,13 'guts':6C,12 'meantraitors':5B 'musica':10 'psychobilly':17 'rock':15 'rockabilly':16 'sale':8C,14 'the':4B 'will':2A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'psychobilly', 'punk', 'rockabilly']
                                        'tag_date'  1999
                                     'discogstags'  ['psychobilly', 'rock']

============================== file details ==============================
                                           'mtime'  1620526582.4811733  (2021-05-09 04:16:22)
                             'size'  5197696