======================== unified (from filesystem) ========================
                                         'bitrate'  '219.662'
                                        'duration'  '267'
                                          'artist'  'Alanis Morissette'
                                     'text_people'  ''
                                         'release'  'Jagged Little Pill'
                                           'title'  'Head Over Feet'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative', 'singer songwriter', 'female vocalists', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '106.531'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Jagged Little Pill'
'TBPM' (BPM (beats per minute))                     '106.531'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Head Over Feet'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Alanis Morissette'
'TRCK' (Track number/Position in set)               '8'
'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', 'alternative rock']
'TXXX:lastfmtags'                                   ['alternative', 'singer songwriter', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.57 dB'
'TXXX:replaygain_track_peak'                        '0.507765'

========================== row from database ==========================
                                              'id'  181477
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Alanis Morissette/Alanis Morissette - Jagged Little Pill - 08 - Head Over Feet.mp3
                                         'working'  None
                                         'bitrate'  219
                                    'duration_sec'  267
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  7346323
                                           'mtime'  1628355653
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 08 ifs songwriter eos
                                      'tag_artist'  Alanis Morissette
                                     'tag_release'  Jagged Little Pill
                                       'tag_title'  Head Over Feet
                                             'bpm'  106.531
                                    'search_title'  'feet':3 'head':1 'over':2
                                   'search_artist'  'alanis':1 'morissette':2
                                  'search_release'  'jagged':1 'little':2 'pill':3
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':9 'alanis':4B 'eos':11 'feet':3A 'head':1A 'ifs':12 'jagged':6C 'little':7C 'morissette':5B 'over':2A 'pill':8C 'songwriter':10
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'singer songwriter', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1628355652.585657  (2021-08-07 19:00:52)
                             'size'  7346323