======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '154'
                                          'artist'  'R. Biagi-A. Amor'
                                     'text_people'  ''
                                         'release'  'Milongas'
                                           'title'  'Con mi perro'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '101.819'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'TALB' (Album/Movie/Show title)                     'Milongas'
'TBPM' (BPM (beats per minute))                     '101.819'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TIT2' (Title/songname/content description)         'Con mi perro'
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '154932'
'TPE1' (Lead performer(s)/Soloist(s))               'R. Biagi-A. Amor'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '03'
'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:other'                                        'Contursi-Troilo'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.510908'

========================== row from database ==========================
                                              'id'  733017
                                            'path'  /data/Music/Bulk/00localcharacter/milongas/03 - Con mi perro (Contursi-Troilo) R. Biagi-A. Amor.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  154
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  2495300
                                           'mtime'  1620528423
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter milongas 03 (Contursi Troilo) loc style tango milonga
                                      'tag_artist'  R. Biagi-A. Amor
                                     'tag_release'  Milongas
                                       'tag_title'  Con mi perro
                                             'bpm'  101.819
                                    'search_title'  'con':1 'mi':2 'perro':3
                                   'search_artist'  'a':4 'amor':6 'biagi':3 'biagia':5 'r':1,2
                                  'search_release'  'milongas':1
                                     'search_rest'  'contursi':2,3 'loc':6 'milonga':9 'milongas':1 'style':7 'tango':8 'troilo':4,5
                                    'search_combo'  'a':7B 'amor':9B 'biagi':6B 'biagia':8B 'con':1A 'contursi':12,13 'loc':16 'mi':2A 'milonga':19 'milongas':10C,11 'perro':3A 'r':4B,5B 'style':17 'tango':18 'troilo':14,15
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  8B
                                           '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528423.467638  (2021-05-09 04:47:03)
                             'size'  2495300