======================== unified (from filesystem) ========================
                                         'bitrate'  '123.552'
                                        'duration'  '153'
                                          'artist'  'The Tango Orchestra Of Buenos Aires'
                                     'text_people'  'Alfredo Le Pera/Carlos Gardel/Le Pera, A.'
                                         'release'  'french tanguerooo'
                                           'title'  'Por Una Cabeza -version mas lente-'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['latin', 'tango']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '120.327'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '120.327'
'TCOM' (Composer)                                   'Alfredo Le Pera/Carlos Gardel/Le Pera, A.'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'FrenchTanguero'
'TIT2' (Title/songname/content description)         'Por Una Cabeza -version mas lente-'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Tango Orchestra Of Buenos Aires'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Fiesta Latina'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['latin', 'tango']
'TXXX:q-bass'                                       '1'
'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-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.22 dB'
'TXXX:replaygain_track_peak'                        '0.572008'

========================== row from database ==========================
                                              'id'  924019
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/the tango orchestra of buenos aires - por una cabeza -más lente.mp3
                                         'working'  None
                                         'bitrate'  123
                                    'duration_sec'  153
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  2371456
                                           'mtime'  1620528414
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter the tango orchestra of buenos aires por una cabeza más loc style tango milonga
                                      'tag_artist'  The Tango Orchestra Of Buenos Aires
                                     'tag_release'  french tanguerooo
                                       'tag_title'  Por Una Cabeza -version mas lente-
                                             'bpm'  120.327
                                    'search_title'  'cabeza':3 'lente':7,8 'mas':6 'por':1 'una':2 'version':4,5
                                   'search_artist'  'aires':6 'buenos':5 'of':4 'orchestra':3 'tango':2 'the':1
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'aires':6 'buenos':5 'cabeza':9 'loc':12 'mas':10,11 'milonga':14 'of':4 'orchestra':3 'por':7 'style':13 'tango':2 'the':1 'una':8
                                    'search_combo'  'aires':14B,22 'buenos':13B,21 'cabeza':3A,25 'french':15C 'lente':7A,8A 'loc':28 'mas':6A,26,27 'milonga':30 'of':12B,20 'orchestra':11B,19 'por':1A,23 'style':29 'tango':10B,18 'tanguerooo':16C 'the':9B,17 'una':2A,24 'version':4A,5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-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-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  2001
                                     'discogstags'  ['latin', 'tango']

============================== file details ==============================
                                           'mtime'  1620528414.0604389  (2021-05-09 04:46:54)
                             'size'  2371456