======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '312'
                                          'artist'  'Goran Bregović'
                                     'text_people'  'Goran Bregovic/Iggy Pop'
                                         'release'  'plastictango tango'
                                           'title'  'TV Screen (feat. Iggy Pop)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-m'
                                             'bpm'  '99.812'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'plastictango tango'
'TBPM' (BPM (beats per minute))                     '99.812'
'TCOM' (Composer)                                   'Goran Bregovic/Iggy Pop'
'TCON' (Content type, a.k.a. Genre)                 'loc-m'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'TV Screen (feat. Iggy Pop)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Goran Bregović'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Mercury'
'TXXX:MP3GAIN_MINMAX'                               '156,185'
'TXXX:MP3GAIN_UNDO'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.464153'

========================== row from database ==========================
                                              'id'  241145
                                            'path'  /data/Music/Bulk/00localcharacter/plastictango/tango/tango 75.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  312
                                           'genre'  loc-m
                                        'filesize'  5075370
                                           'mtime'  1620527759
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 75 loc m
                                      'tag_artist'  Goran Bregović
                                     'tag_release'  plastictango tango
                                       'tag_title'  TV Screen (feat. Iggy Pop)
                                             'bpm'  99.812
                                    'search_title'  'feat':3,4 'iggy':5 'pop':6,7 'screen':2 'tv':1
                                   'search_artist'  'bregovic':2,3 'goran':1
                                  'search_release'  'plastictango':1 'tango':2
                                     'search_rest'  '75':1 'loc':2 'm':3
                                    'search_combo'  '75':13 'bregovic':9B,10B 'feat':3A,4A 'goran':8B 'iggy':5A 'loc':14 'm':15 'plastictango':11C 'pop':6A,7A 'screen':2A 'tango':12C 'tv':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527758.740496  (2021-05-09 04:35:58)
                             'size'  5075370