======================== unified (from filesystem) ========================
                                         'bitrate'  '149.789'
                                        'duration'  '211'
                                          'artist'  'Orquesta Tango Cafi'
                                     'text_people'  'Matos - Rodriguez - E.Van Dijken'
                                         'release'  'french tanguerooo'
                                           'title'  'La Cumparsita    '
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '121.628'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '121.628'
'TCOM' (Composer)                                   'Matos - Rodriguez - E.Van Dijken'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TDRC' (Recording time)                             '1990'
'TENC' (Encoded by)                                 'FrenchTanguero'
'TIT2' (Title/songname/content description)         'La Cumparsita    '
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Orquesta Tango Cafi'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.02 dB'
'TXXX:replaygain_track_peak'                        '0.897828'

========================== row from database ==========================
                                              'id'  925475
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/orquesta tango café - la cumparsita.mp3
                                         'working'  None
                                         'bitrate'  149
                                    'duration_sec'  211
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  3962752
                                           'mtime'  1620528377
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter orquesta tango café la cumparsita loc style tango or milonga
                                      'tag_artist'  Orquesta Tango Cafi
                                     'tag_release'  french tanguerooo
                                       'tag_title'  La Cumparsita    
                                             'bpm'  121.628
                                    'search_title'  'cumparsita':2 'la':1
                                   'search_artist'  'cafi':3 'orquesta':1 'tango':2
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'cafe':3,4 'cumparsita':6 'la':5 'loc':7 'milonga':10 'or':9 'orquesta':1 'style':8 'tango':2
                                    'search_combo'  'cafe':10,11 'cafi':5B 'cumparsita':2A,13 'french':6C 'la':1A,12 'loc':14 'milonga':17 'or':16 'orquesta':3B,8 'style':15 'tango':4B,9 'tanguerooo':7C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528377.356357  (2021-05-09 04:46:17)
                             'size'  3962752