======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '164'
                                          'artist'  'The Four Tops'
                                     'text_people'  ''
                                         'release'  'The Best Of Four Tops'
                                           'title'  "I Can't Help Myself (Sugar Pie"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', '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-2']")
                                      'lastfmtags'  "['oldies', 'motown', 'rhythm and blues', 'soul', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '128.332'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Best Of Four Tops'
'TBPM' (BPM (beats per minute))                     '128.332'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "I Can't Help Myself (Sugar Pie"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Four Tops'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'motown', 'rhythm and blues', 'soul', '60s']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.327503'

========================== row from database ==========================
                                              'id'  1305718
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Four Tops/The Four Tops__cifs2bc6.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  164
                                           'genre'  funk or soul
                                        'filesize'  3954216
                                           'mtime'  1628357932
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Tops__cifs2bc6 funk or soul
                                      'tag_artist'  The Four Tops
                                     'tag_release'  The Best Of Four Tops
                                       'tag_title'  I Can't Help Myself (Sugar Pie
                                             'bpm'  128.332
                                    'search_title'  'can':2 'cant':4 'help':5 'i':1 'myself':6 'pie':9 'sugar':7,8 't':3
                                   'search_artist'  'four':2 'the':1 'tops':3
                                  'search_release'  'best':2 'four':4 'of':3 'the':1 'tops':5
                                     'search_rest'  '00poprockelectronic':1 'cifs2bc6':3 'funk':4 'or':5 'soul':6 'tops':2
                                    'search_combo'  '00poprockelectronic':18 'best':14C 'can':2A 'cant':4A 'cifs2bc6':20 'four':11B,16C 'funk':21 'help':5A 'i':1A 'myself':6A 'of':15C 'or':22 'pie':9A 'soul':23 'sugar':7A,8A 't':3A 'the':10B,13C 'tops':12B,17C,19
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'motown', 'rhythm and blues', 'soul', '60s']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357931.9418843  (2021-08-07 19:38:51)
                             'size'  3954216