======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '147'
                                          'artist'  'Messer Chups'
                                     'text_people'  ''
                                         'release'  'Heretic Channel'
                                           'title'  'Loch Ness Surfing'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'russian', 'psychobilly', 'electronic', 'experimental']"
                                     'discogstags'  "['rock', 'surf']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '18'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '145.2'
                                             'key'  '9A'
                                        'acoustid'  'bfca8188-6fa0-464d-b09c-9b18300a5057'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Heretic Channel'
'TBPM' (BPM (beats per minute))                     '145.2'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'iTunes 8.1.0.52'
'TIT2' (Title/songname/content description)         'Loch Ness Surfing'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Messer Chups'
'TPE2' (Band/orchestra/accompaniment)               'Messer Chups'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Solnze Records'
'TRCK' (Track number/Position in set)               '12/18'
'TSO2'                                              'Messer Chups'
'TSOP' (Performer sort order)                       'Messer Chups'
'TXXX:Acoustid Id'                                  'bfca8188-6fa0-464d-b09c-9b18300a5057'
'TXXX:BARCODE'                                      '4601250360676'
'TXXX:CATALOGNUMBER'                                'SCD 013'
'TXXX:MusicBrainz Album Artist Id'                  '050c59c3-12d7-4d7e-b890-9ebcf0caa85d'
'TXXX:MusicBrainz Album Id'                         '747598be-2759-49df-b6ca-7e674c819f8f'
'TXXX:MusicBrainz Album Release Country'            'RU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '050c59c3-12d7-4d7e-b890-9ebcf0caa85d'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'surf']
'TXXX:lastfmtags'                                   ['surf', 'russian', 'psychobilly', 'electronic', 'experimental']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.52 dB'
'TXXX:replaygain_track_peak'                        '0.576785'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f2387fa9-f371-42b4-9494-4865aebce547')

========================== row from database ==========================
                                              'id'  1334587
                                            'path'  /data/Music/Bulk/00poprockelectronic/2009 - Heretic Channel/messer chups - heretic channel - 12 - loch ness surfing.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  147
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  3554451
                                           'mtime'  1620525651
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2009 messer chups heretic channel 12 loch ness surfing rock rockabilly or psychobilly
                                      'tag_artist'  Messer Chups
                                     'tag_release'  Heretic Channel
                                       'tag_title'  Loch Ness Surfing
                                             'bpm'  145.2
                                    'search_title'  'loch':1 'ness':2 'surfing':3
                                   'search_artist'  'chups':2 'messer':1
                                  'search_release'  'channel':2 'heretic':1
                                     'search_rest'  '00poprockelectronic':1 '2009':2 'channel':6 'chups':4 'heretic':5 'loch':7 'messer':3 'ness':8 'or':12 'psychobilly':13 'rock':10 'rockabilly':11 'surfing':9
                                    'search_combo'  '00poprockelectronic':8 '2009':9 'channel':7C,13 'chups':5B,11 'heretic':6C,12 'loch':1A,14 'messer':4B,10 'ness':2A,15 'or':19 'psychobilly':20 'rock':17 'rockabilly':18 'surfing':3A,16
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'russian', 'psychobilly', 'electronic', 'experimental']
                                        'tag_date'  2009
                                     'discogstags'  ['rock', 'surf']

============================== file details ==============================
                                           'mtime'  1620525651.2073298  (2021-05-09 04:00:51)
                             'size'  3554451