======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '350'
                                          'artist'  'Glenn Frey'
                                     'text_people'  ''
                                         'release'  'Легенды Ретро FM Зарубежная Дискотека 90х'
                                           'title'  ' You Belong To The City'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'soft rock', 'rock', 'singer songwriter', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '40'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo;set-pl-billboard'
                                             'bpm'  '109.3'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '040'
'TALB' (Album/Movie/Show title)                     'Легенды Ретро FM Зарубежная Дискотека 90х'
'TBPM' (BPM (beats per minute))                     '109.3'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-disco or italo', 'set-pl-billboard']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         ' You Belong To The City'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Glenn Frey'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '40'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'soft rock', 'rock', 'singer songwriter', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.95 dB'
'TXXX:replaygain_track_peak'                        '0.577516'

========================== row from database ==========================
                                              'id'  1292622
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Richenel - Diskoteka_Retro_90_Zar/040 Glenn Frey - You Belong To The City.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  350
                                           'genre'  electronic-we-disco or italo;set-pl-billboard
                                        'filesize'  9808466
                                           'mtime'  1620536937
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Richenel Diskoteka_Retro_90_Zar 040 electronic we disco or italo;set pl billboard
                                      'tag_artist'  Glenn Frey
                                     'tag_release'  Легенды Ретро FM Зарубежная Дискотека 90х
                                       'tag_title'   You Belong To The City
                                             'bpm'  109.3
                                    'search_title'  'belong':2 'city':5 'the':4 'to':3 'you':1
                                   'search_artist'  'frey':2 'glenn':1
                                  'search_release'  '90x':11 '90х':10 'diskoteka':9 'fm':5 'legendy':2 'retro':4 'zharubezhnaya':7 'дискотека':8 'зарубежная':6 'легенды':1 'ретро':3
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 '90':9 'billboard':19 'disco':3 'diskoteka':7 'electronic':11 'italo':5,14,16 'or':13 'pl':18 'retro':8 'richenel':6 'set':15,17 'waves':2 'we':12 'zar':10
                                    'search_combo'  '00disco':22 '00poprockelectronic':19 '90':27 '90x':18C '90х':17C 'belong':2A 'billboard':37 'city':5A 'disco':21 'diskoteka':16C,25 'electronic':29 'fm':12C 'frey':7B 'glenn':6B 'italo':23,32,34 'legendy':9C 'or':31 'pl':36 'retro':11C,26 'richenel':24 'set':33,35 'the':4A 'to':3A 'waves':20 'we':30 'you':1A 'zar':28 'zharubezhnaya':14C 'дискотека':15C 'зарубежная':13C 'легенды':8C 'ретро':10C
                                    'tag_tracknum'  40
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', '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-3', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'soft rock', 'rock', 'singer songwriter', 'classic rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536937.1498842  (2021-05-09 07:08:57)
                             'size'  9808466