======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '257'
                                          'artist'  'Lionel Richie'
                                     'text_people'  ''
                                         'release'  'Sounds of the 1980s (Super Clasicos)'
                                           'title'  'All Night Long'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'soul', 'romantic', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio;set-pl-billboard'
                                             'bpm'  '108.6'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sounds of the 1980s (Super Clasicos)'
'TBPM' (BPM (beats per minute))                     '108.6'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio', 'set-pl-billboard']
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'All Night Long'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lionel Richie'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'soul', 'romantic', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.90 dB'
'TXXX:replaygain_track_peak'                        '0.552236'

========================== row from database ==========================
                                              'id'  1404093
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Level 42 - Sound of the 1980s (Super Clasicos) (002) (T)/07 - Lionel Richie - All Night Long.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  257
                                           'genre'  electronic-generic or radio;set-pl-billboard
                                        'filesize'  4123360
                                           'mtime'  1620384720
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Level 42 (002) (T) 07 electronic generic or radio;set pl billboard
                                      'tag_artist'  Lionel Richie
                                     'tag_release'  Sounds of the 1980s (Super Clasicos)
                                       'tag_title'  All Night Long
                                             'bpm'  108.6
                                    'search_title'  'all':1 'long':3 'night':2
                                   'search_artist'  'lionel':1 'richie':2
                                  'search_release'  '1980s':4 'clasicos':7,8 'of':2 'sounds':1 'super':5,6 'the':3
                                     'search_rest'  '002':7,8 '00poprockelectronic':1 '42':6 'billboard':18 'dance':3 'electronic':11 'generic':2 'level':5 'or':12 'pl':17 'radio':13,15 'set':14,16 't':9,10 'trapbeat':4
                                    'search_combo'  '002':20,21 '00poprockelectronic':14 '1980s':9C '42':19 'all':1A 'billboard':31 'clasicos':12C,13C 'dance':16 'electronic':24 'generic':15 'level':18 'lionel':4B 'long':3A 'night':2A 'of':7C 'or':25 'pl':30 'radio':26,28 'richie':5B 'set':27,29 'sounds':6C 'super':10C,11C 't':22,23 'the':8C 'trapbeat':17
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'soul', 'romantic', 'easy listening']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384720.1726248  (2021-05-07 12:52:00)
                             'size'  4123360