======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '239'
                                          'artist'  'Spooks'
                                     'text_people'  ''
                                         'release'  'Promo Only Urban Radio Mar 2000'
                                           'title'  "Things I've Seen"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['hiphop', 'american', 'hip hop', 'rap']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '98.454'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Promo Only Urban Radio Mar 2000'
'TBPM' (BPM (beats per minute))                     '98.454'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         "Things I've Seen"
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Spooks'
'TRCK' (Track number/Position in set)               '19'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'hip hop'
'TXXX:lastfmtags'                                   ['hiphop', 'american', 'hip hop', 'rap']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.74 dB'
'TXXX:replaygain_track_peak'                        '0.443703'

========================== row from database ==========================
                                              'id'  720255
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Spooks/MBZ;#Spooks;#Bravo Hits 32 (disc 1);#19;#Things Ive Seen.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  239
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  5751041
                                           'mtime'  1620592499
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism MBZ;#Spooks;#Bravo Hits 32 (disc 1);#19;#Things Ive hip hop or rnb or rap or turntablism
                                      'tag_artist'  Spooks
                                     'tag_release'  Promo Only Urban Radio Mar 2000
                                       'tag_title'  Things I've Seen
                                             'bpm'  98.454
                                    'search_title'  'i':2 'ive':4 'seen':5 'things':1 've':3
                                   'search_artist'  'spooks':1
                                  'search_release'  '2000':6 'mar':5 'only':2 'promo':1 'radio':4 'urban':3
                                     'search_rest'  '1':15,18 '19':16,19 '32':12 'bravo':7,10 'disc':13,14 'hip':22 'hiphop':1 'hits':11 'hop':23 'ive':21 'mbz':5,8 'or':24 'rap':2 'rnb':3 'spooks':6,9 'things':17,20 'turntablism':4
                                    'search_combo'  '1':27,30 '19':28,31 '2000':12C '32':24 'bravo':19,22 'disc':25,26 'hip':34 'hiphop':13 'hits':23 'hop':35 'i':2A 'ive':4A,33 'mar':11C 'mbz':17,20 'only':8C 'or':36 'promo':7C 'radio':10C 'rap':14 'rnb':15 'seen':5A 'spooks':6B,18,21 'things':1A,29,32 'turntablism':16 'urban':9C 've':3A
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-3', '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-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hiphop', 'american', 'hip hop', 'rap']
                                        'tag_date'  2000
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1620592498.631981  (2021-05-09 22:34:58)
                             'size'  5751041