======================== unified (from filesystem) ========================
                                         'bitrate'  '127.839'
                                        'duration'  '169'
                                          'artist'  'Tori Amos'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Humpty Dumpty'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['90s', 'piano', 'female vocalists', 'alternative', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '118.497'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '118.497'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Humpty Dumpty'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tori Amos'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['90s', 'piano', 'female vocalists', 'alternative', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.34 dB'
'TXXX:replaygain_track_peak'                        '0.661288'

========================== row from database ==========================
                                              'id'  1362465
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Tori Amos/MBZ;#Tori Amos;#Forgotten Earthquakes B-Sides and Rarities;#05;#Humpty Dumpty.mp3
                                         'working'  None
                                         'bitrate'  127
                                    'duration_sec'  169
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  2717276
                                           'mtime'  1628354096
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos MBZ;#Tori Amos;#Forgotten Earthquakes B Sides and Rarities;#05;#Humpty ifs songwriter eos
                                      'tag_artist'  Tori Amos
                                     'tag_release'  None
                                       'tag_title'  Humpty Dumpty
                                             'bpm'  118.497
                                    'search_title'  'dumpty':2 'humpty':1
                                   'search_artist'  'amos':2 'tori':1
                                  'search_release'  
                                     'search_rest'  '00singer':1 '00songwriter':4 '05':18,21 'amos':9,11 'and':16 'b':14 'earthquakes':13 'eos':3 'forgotten':10,12 'humpty':19,22 'ifs':23 'mbz':5,7 'rarities':17,20 'sides':15 'songwriter':2 'tori':6,8
                                    'search_combo'  '00singer':5 '00songwriter':8 '05':22,25 'amos':4B,13,15 'and':20 'b':18 'dumpty':2A 'earthquakes':17 'eos':7 'forgotten':14,16 'humpty':1A,23,26 'ifs':27 'mbz':9,11 'rarities':21,24 'sides':19 'songwriter':6 'tori':3B,10,12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['90s', 'piano', 'female vocalists', 'alternative', 'singer songwriter']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628354096.4425204  (2021-08-07 18:34:56)
                             'size'  2717276