======================== unified (from filesystem) ========================
                                         'bitrate'  '228.549'
                                        'duration'  '192'
                                          'artist'  'DADDY YANKEE'
                                     'text_people'  ''
                                         'release'  'Gasolina Summer Hits'
                                           'title'  'Gasolina'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-3', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rap', 'reggaeton', 'hip hop', 'latin', 'spanish']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '96.0'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Gasolina Summer Hits'
'TBPM' (BPM (beats per minute))                     '96.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Gasolina'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'DADDY YANKEE'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rap', 'reggaeton', 'hip hop', 'latin', 'spanish']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.06 dB'
'TXXX:replaygain_track_peak'                        '0.395813'

========================== row from database ==========================
                                              'id'  1361328
                                            'path'  /data/Music/Bulk/00poprockelectronic/Energy FM 104.2 [OLD]/Daddy Yankee - Gasolina.mp3
                                         'working'  None
                                         'bitrate'  228
                                    'duration_sec'  192
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  5513088
                                           'mtime'  1636301108
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Energy FM 104.2 [OLD] Daddy Yankee electronic generic or radio unsorted
                                      'tag_artist'  DADDY YANKEE
                                     'tag_release'  Gasolina Summer Hits
                                       'tag_title'  Gasolina
                                             'bpm'  96.0
                                    'search_title'  'gasolina':1
                                   'search_artist'  'daddy':1 'yankee':2
                                  'search_release'  'gasolina':1 'hits':3 'summer':2
                                     'search_rest'  '00poprockelectronic':1 '104':4 '1042':6 '2':5 'daddy':9 'electronic':11 'energy':2 'fm':3 'generic':12 'old':7,8 'or':13 'radio':14 'unsorted':15 'yankee':10
                                    'search_combo'  '00poprockelectronic':7 '104':10 '1042':12 '2':11 'daddy':2B,15 'electronic':17 'energy':8 'fm':9 'gasolina':1A,4C 'generic':18 'hits':6C 'old':13,14 'or':19 'radio':20 'summer':5C 'unsorted':21 'yankee':3B,16
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rap', 'reggaeton', 'hip hop', 'latin', 'spanish']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636301108.0179574  (2021-11-07 17:05:08)
                             'size'  5513088