======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '356'
                                          'artist'  "Guns N' Roses"
                                     'text_people'  ''
                                         'release'  'Hits of the 80s'
                                           'title'  "Sweet Child O' Mine"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', '80s', 'hard rock', 'metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;rock-cppex'
                                             'bpm'  '125.548'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Hits of the 80s'
'TBPM' (BPM (beats per minute))                     '125.548'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'rock-cppex']
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         "Sweet Child O' Mine"
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               "Guns N' Roses"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'hard rock', 'metal', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '-0.25 dB'
'TXXX:replaygain_track_peak'                        '0.521713'

========================== row from database ==========================
                                              'id'  1524859
                                            'path'  /data/Music/Bulk/00poprockelectronic/Hits Of The 80_s/Guns N_ Roses - Sweet Child O_ Mine (LP Version).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  356
                                           'genre'  electronic-generic or radio-unsorted;rock-cppex
                                        'filesize'  7129719
                                           'mtime'  1620737203
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Of The 80_s N_ O_ (LP Version) electronic generic or radio unsorted;rock cppex
                                      'tag_artist'  Guns N' Roses
                                     'tag_release'  Hits of the 80s
                                       'tag_title'  Sweet Child O' Mine
                                             'bpm'  125.548
                                    'search_title'  'child':2 'mine':5 'o':3,4 'sweet':1
                                   'search_artist'  'guns':1 'n':2,3 'roses':4
                                  'search_release'  '80s':4 'hits':1 'of':2 'the':3
                                     'search_rest'  '00poprockelectronic':1 '80':4 'cppex':20 'electronic':12 'generic':13 'lp':8,9 'n':6 'o':7 'of':2 'or':14 'radio':15 'rock':17,19 's':5 'the':3 'unsorted':16,18 'version':10,11
                                    'search_combo'  '00poprockelectronic':14 '80':17 '80s':13C 'child':2A 'cppex':33 'electronic':25 'generic':26 'guns':6B 'hits':10C 'lp':21,22 'mine':5A 'n':7B,8B,19 'o':3A,4A,20 'of':11C,15 'or':27 'radio':28 'rock':30,32 'roses':9B 's':18 'sweet':1A 'the':12C,16 'unsorted':29,31 'version':23,24
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  2A
                                           '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-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'hard rock', 'metal', 'rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737203.4835804  (2021-05-11 14:46:43)
                             'size'  7129719