======================== unified (from filesystem) ========================
                                         'bitrate'  '56.0'
                                        'duration'  '78'
                                          'artist'  'Heidi'
                                     'text_people'  ''
                                         'release'  'sintonías de la tele3'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'pop', 'female vocalists', 'female vocalist', 'rock']"
                                     'discogstags'  '["children\'s"]'
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '110.785'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'sintonías de la tele3'
'TBPM' (BPM (beats per minute))                     '110.785'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Heidi'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  "children's"
'TXXX:lastfmtags'                                   ['japanese', 'pop', 'female vocalists', 'female vocalist', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.53 dB'
'TXXX:replaygain_track_peak'                        '0.518632'

========================== row from database ==========================
                                              'id'  729795
                                            'path'  /data/Music/Bulk/00localcharacter/sintonías de la tele3/Heidi - Abuelito Dime Tú.mp3
                                         'working'  None
                                         'bitrate'  56
                                    'duration_sec'  78
                                           'genre'  soundtrack-video-series
                                        'filesize'  550955
                                           'mtime'  1623408282
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Abuelito Dime Tú soundtrack video series
                                      'tag_artist'  Heidi
                                     'tag_release'  sintonías de la tele3
                                       'tag_title'  None
                                             'bpm'  110.785
                                    'search_title'  None
                                   'search_artist'  'heidi':1
                                  'search_release'  'de':3 'la':4 'sintonias':1,2 'tele3':5
                                     'search_rest'  'abuelito':1 'dime':2 'series':7 'soundtrack':5 'tu':3,4 'video':6
                                    'search_combo'  'abuelito':7 'de':4C 'dime':8 'heidi':1B 'la':5C 'series':13 'sintonias':2C,3C 'soundtrack':11 'tele3':6C 'tu':9,10 'video':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-piano-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'pop', 'female vocalists', 'female vocalist', 'rock']
                                        'tag_date'  
                                     'discogstags'  ["children's"]

============================== file details ==============================
                                           'mtime'  1623408282.373123  (2021-06-11 12:44:42)
                             'size'  550955