======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '208'
                                          'artist'  'MieczysBaw Fogg & Orkiestra tan. "Syrena-Rekord" (dyr. Henryk Gold)'
                                     'text_people'  'Bixio'
                                         'release'  'tango in europe'
                                           'title'  'Cicho grajcie mi wri\x05| (Violino Tzigano)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '114.673'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'tango in europe'
'TBPM' (BPM (beats per minute))                     '114.673'
'TCOM' (Composer)                                   'Bixio'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TDRC' (Recording time)                             '1936'
'TIT2' (Title/songname/content description)         'Cicho grajcie mi wri\x05| (Violino Tzigano)'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'MieczysBaw Fogg & Orkiestra tan. "Syrena-Rekord" (dyr. Henryk Gold)'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.557012'

========================== row from database ==========================
                                              'id'  851181
                                            'path'  /data/Music/Bulk/00localcharacter/tango in europe (various)/Mieczys³aw Fogg & Ork. Henryka Golda - Cicho grajcie mi wri¹¿ (Violino Tzigano) (1936).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  208
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  3344885
                                           'mtime'  1620528478
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter (various) Mieczys³aw Ork. Henryka Golda wri¹¿ (1936) loc style milonga
                                      'tag_artist'  MieczysBaw Fogg & Orkiestra tan. "Syrena-Rekord" (dyr. Henryk Gold)
                                     'tag_release'  tango in europe
                                       'tag_title'  Cicho grajcie mi wri| (Violino Tzigano)
                                             'bpm'  114.673
                                    'search_title'  'cicho':1 'grajcie':2 'mi':3 'tzigano':7,8 'violino':5,6 'wri':4
                                   'search_artist'  'baw':15 'dyr':9,10 'fogg':2 'gold':12,13 'henryk':11 'mieczys':14 'mieczysbaw':1 'orkiestra':3 'rekord':7 'syrena':6 'syrenarekord':8 'tan':4,5
                                  'search_release'  'europe':3 'in':2 'tango':1
                                     'search_rest'  '1936':12,13 'aw':4 'golda':9 'henryka':8 'loc':14 'mieczys':3 'mieczys3aw':5 'milonga':16 'ork':6,7 'style':15 'various':1,2 'wri':10 'wri1':11
                                    'search_combo'  '1936':38,39 'aw':30 'baw':23B 'cicho':1A 'dyr':17B,18B 'europe':26C 'fogg':10B 'gold':20B,21B 'golda':35 'grajcie':2A 'henryk':19B 'henryka':34 'in':25C 'loc':40 'mi':3A 'mieczys':22B,29 'mieczys3aw':31 'mieczysbaw':9B 'milonga':42 'ork':32,33 'orkiestra':11B 'rekord':15B 'style':41 'syrena':14B 'syrenarekord':16B 'tan':12B,13B 'tango':24C 'tzigano':7A,8A 'various':27,28 'violino':5A,6A 'wri':4A,36 'wri1':37
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528478.4425654  (2021-05-09 04:47:58)
                             'size'  3344885