======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '218'
                                          'artist'  'C.C.S.'
                                     'text_people'  ''
                                         'release'  'Easy Instr 70s'
                                           'title'  "Whole Lotta Love (fl. prog. UK#13 '70)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'classic rock', 'hard rock', 'power metal', 'blues rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '121.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Easy Instr 70s'
'TBPM' (BPM (beats per minute))                     '121.9'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "Whole Lotta Love (fl. prog. UK#13 '70)"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'C.C.S.'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:artist%-%title'                               '01 CCS - Whole Lotta Love.mp3'
'TXXX:lastfmtags'                                   ['rock', 'classic rock', 'hard rock', 'power metal', 'blues rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.427979'

========================== row from database ==========================
                                              'id'  1533231
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/C.C.S. - Whole Lotta Love (fl. prog. UK#13 _70).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  218
                                           'genre'  funk or soul
                                        'filesize'  5240120
                                           'mtime'  1628357803
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY 70_s _70) funk or soul
                                      'tag_artist'  C.C.S.
                                     'tag_release'  Easy Instr 70s
                                       'tag_title'  Whole Lotta Love (fl. prog. UK#13 '70)
                                             'bpm'  121.9
                                    'search_title'  '13':9,11 '70':12,13 'fl':4,5 'lotta':2 'love':3 'prog':6,7 'uk':8,10 'whole':1
                                   'search_artist'  'c':1,2 'ccs':4 's':3
                                  'search_release'  '70s':3 'easy':1 'instr':2
                                     'search_rest'  '70':5,7,8 'easy':4 'funk':2 'or':9 's':6 'soul':3 'swing':1
                                    'search_combo'  '13':9A,11A '70':12A,13A,25,27,28 '70s':20C 'c':14B,15B 'ccs':17B 'easy':18C,24 'fl':4A,5A 'funk':22 'instr':19C 'lotta':2A 'love':3A 'or':29 'prog':6A,7A 's':16B,26 'soul':23 'swing':21 'uk':8A,10A 'whole':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'classic rock', 'hard rock', 'power metal', 'blues rock']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357802.7329915  (2021-08-07 19:36:42)
                             'size'  5240120