======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '260'
                                          'artist'  'Amanda Marshall'
                                     'text_people'  ''
                                         'release'  'Amanda Marshall'
                                           'title'  'Fall From Grace'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'singer songwriter', 'female vocalists', 'pop', 'canadian']"
                                     'discogstags'  "['rock', 'pop', 'alternative rock', 'soft rock', 'pop rock', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '91.680'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Amanda Marshall'
'TBPM' (BPM (beats per minute))                     '91.680'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Fall From Grace'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Amanda Marshall'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop', 'alternative rock', 'soft rock', 'pop rock', 'ballad']
'TXXX:lastfmtags'                                   ['rock', 'singer songwriter', 'female vocalists', 'pop', 'canadian']
'TXXX:original release date'                        ['1996', '1995']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.80 dB'
'TXXX:replaygain_track_peak'                        '0.685157'

========================== row from database ==========================
                                              'id'  1277124
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Amanda Marshall/MBZ;#Amanda Marshall;#Amanda Marshall;#03;#Fall From Grace.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  260
                                           'genre'  ifs-songwriter
                                        'filesize'  4169338
                                           'mtime'  1636916191
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#Amanda Marshall;#Amanda Marshall;#03;#Fall ifs songwriter
                                      'tag_artist'  Amanda Marshall
                                     'tag_release'  Amanda Marshall
                                       'tag_title'  Fall From Grace
                                             'bpm'  91.68
                                    'search_title'  'fall':1 'from':2 'grace':3
                                   'search_artist'  'amanda':1 'marshall':2
                                  'search_release'  'amanda':1 'marshall':2
                                     'search_rest'  '00singer':1 '03':13,16 'amanda':5,7,9,11 'eos':3 'fall':14,17 'ifs':18 'marshall':8,10,12,15 'mbz':4,6 'songwriter':2
                                    'search_combo'  '00singer':8 '03':20,23 'amanda':4B,6C,12,14,16,18 'eos':10 'fall':1A,21,24 'from':2A 'grace':3A 'ifs':25 'marshall':5B,7C,15,17,19,22 'mbz':11,13 'songwriter':9
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'singer songwriter', 'female vocalists', 'pop', 'canadian']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'pop', 'alternative rock', 'soft rock', 'pop rock', 'ballad']

============================== file details ==============================
                                           'mtime'  1636916190.6270323  (2021-11-14 19:56:30)
                             'size'  4169338