======================== unified (from filesystem) ========================
                                         'bitrate'  '210.449'
                                        'duration'  '217'
                                          'artist'  'J. Geils Band'
                                     'text_people'  ''
                                         'release'  'The Must-Have Hits'
                                           'title'  'Centerfold'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-3']")
                                      'lastfmtags'  "['classic rock', 'rock', '80s', 'blues rock', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance;set-pl-billboard'
                                             'bpm'  '113.964'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Must-Have Hits'
'TBPM' (BPM (beats per minute))                     '113.964'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-dance', 'set-pl-billboard']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Centerfold'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'J. Geils Band'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', 'rock', '80s', 'blues rock', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.64 dB'
'TXXX:replaygain_track_peak'                        '0.408634'

========================== row from database ==========================
                                              'id'  1282913
                                            'path'  /data/Music/Bulk/00poprockelectronic/80s_-_The_Must-Have_Hits-2006/06-j._geils_band_-_centerfold-ysp.mp3
                                         'working'  None
                                         'bitrate'  210
                                    'duration_sec'  217
                                           'genre'  electronic-generic or radio-dance;set-pl-billboard
                                        'filesize'  5713686
                                           'mtime'  1620384816
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 80s_ _The_Must Have_Hits 2006 06 j._geils_band_ _centerfold ysp electronic generic or radio dance;set pl billboard
                                      'tag_artist'  J. Geils Band
                                     'tag_release'  The Must-Have Hits
                                       'tag_title'  Centerfold
                                             'bpm'  113.964
                                    'search_title'  'centerfold':1
                                   'search_artist'  'band':4 'geils':3 'j':1,2
                                  'search_release'  'have':3 'hits':5 'must':2 'musthave':4 'the':1
                                     'search_rest'  '00poprockelectronic':1 '2006':7 '80s':2 'band':10,13 'billboard':25 'centerfold':14 'dance':20,22 'electronic':16 'geils':9,12 'generic':17 'have':5 'hits':6 'j':8,11 'must':4 'or':18 'pl':24 'radio':19 'set':21,23 'the':3 'ysp':15
                                    'search_combo'  '00poprockelectronic':11 '2006':17 '80s':12 'band':5B,20,23 'billboard':35 'centerfold':1A,24 'dance':30,32 'electronic':26 'geils':4B,19,22 'generic':27 'have':8C,15 'hits':10C,16 'j':2B,3B,18,21 'must':7C,14 'musthave':9C 'or':28 'pl':34 'radio':29 'set':31,33 'the':6C,13 'ysp':25
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'rock', '80s', 'blues rock', 'pop']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384816.12918  (2021-05-07 12:53:36)
                             'size'  5713686