======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '192'
                                          'artist'  'Red Elvises'
                                     'text_people'  ''
                                         'release'  'Bonus'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', '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-1']")
                                      'lastfmtags'  "['surf', 'surf rock', 'psychobilly', 'rockabilly', 'rock', 'russian']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf;loc-russia'
                                             'bpm'  '113.263'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'C:\\Program Files\\MusicMatch'
'COMM:MusicMatch_Path:XXX'                          ('C:\\Program Files\\MusicMatch Jukebox 3\\Music\\Red Elvises\\Surfing in '
 'Siberia\\07_Love pipe.mp3')
'COMM:MusicMatch_Serial:XXX'                        '106D80B'
'TALB' (Album/Movie/Show title)                     'Bonus'
'TBPM' (BPM (beats per minute))                     '113.263'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-surf', 'loc-russia']
'TDRC' (Recording time)                             '2000'
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '192000'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Elvises'
'TPE2' (Band/orchestra/accompaniment)               'Red Elvises'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:TITLE'                                        ['Love Pipe', 'Love pipe']
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['surf', 'surf rock', 'psychobilly', 'rockabilly', 'rock', 'russian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.79 dB'
'TXXX:replaygain_track_peak'                        '0.957698'

========================== row from database ==========================
                                              'id'  1421862
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Red Elvises/Red Elvises - Bonus/Red Elvises - Love Pipe.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  192
                                           'genre'  rock-pop-surf;loc-russia
                                        'filesize'  3088318
                                           'mtime'  1620737078
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner Love Pipe rock pop surf;loc russia
                                      'tag_artist'  Red Elvises
                                     'tag_release'  Bonus
                                       'tag_title'  None
                                             'bpm'  113.263
                                    'search_title'  None
                                   'search_artist'  'elvises':2 'red':1
                                  'search_release'  'bonus':1
                                     'search_rest'  'garage':2 'loc':10,12 'love':5 'pipe':6 'pop':8 'punk':1 'rock':7 'russia':13 'stoner':4 'surf':3,9,11
                                    'search_combo'  'bonus':3C 'elvises':2B 'garage':5 'loc':13,15 'love':8 'pipe':9 'pop':11 'punk':4 'red':1B 'rock':10 'russia':16 'stoner':7 'surf':6,12,14
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'surf rock', 'psychobilly', 'rockabilly', 'rock', 'russian']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737077.6959023  (2021-05-11 14:44:37)
                             'size'  3088318