======================== unified (from filesystem) ========================
                                         'bitrate'  '255.974'
                                        'duration'  '253'
                                          'artist'  'Mary Lou Lord'
                                     'text_people'  'The Bevis Frond'
                                         'release'  'Mary Lou Lord'
                                           'title'  'Lights Are Changing'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'indie pop', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '8'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '125.470'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Mary Lou Lord'
'TBPM' (BPM (beats per minute))                     '125.470'
'TCOM' (Composer)                                   'The Bevis Frond'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1995-01'
'TIT2' (Title/songname/content description)         'Lights Are Changing'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mary Lou Lord'
'TPE2' (Band/orchestra/accompaniment)               'Mary Lou Lord'
'TRCK' (Track number/Position in set)               '1/8'
'TSOP' (Performer sort order)                       'Lord, Mary Lou'
'TXXX:ALBUMARTISTSORT'                              'Lord, Mary Lou'
'TXXX:ASIN'                                         'B000003736'
'TXXX:MusicBrainz Album Artist Id'                  '11d0d66f-c913-4a13-9365-10d771f08cd1'
'TXXX:MusicBrainz Album Id'                         'f84c72d8-40d8-4c34-834f-0b1bc6fc58b1'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'ep'
'TXXX:MusicBrainz Artist Id'                        '11d0d66f-c913-4a13-9365-10d771f08cd1'
'TXXX:MusicIP PUID'                                 '08d7637e-5d4c-e441-bb2b-6e48e471abe0'
'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:added_timestamp'                              '128930990202923527'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:first_played_timestamp'                       '129124470974847997'
'TXXX:last_played_timestamp'                        '129127194413960812'
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:play_count'                                   '3'
'TXXX:q-bass'                                       '3'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+6.14 dB'
'TXXX:replaygain_track_peak'                        '0.218327'

========================== row from database ==========================
                                              'id'  1325480
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Mary Lou Lord-Mary Lou Lord-01-Lights Are Changing.mp3
                                         'working'  None
                                         'bitrate'  255
                                    'duration_sec'  253
                                           'genre'  ifs-songwriter
                                        'filesize'  8119848
                                           'mtime'  1637330771
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 01 ifs songwriter
                                      'tag_artist'  Mary Lou Lord
                                     'tag_release'  Mary Lou Lord
                                       'tag_title'  Lights Are Changing
                                             'bpm'  125.47
                                    'search_title'  'are':2 'changing':3 'lights':1
                                   'search_artist'  'lord':3 'lou':2 'mary':1
                                  'search_release'  'lord':3 'lou':2 'mary':1
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'ifs':7 'loose':3,4 'songwriter':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 'are':2A 'changing':3A 'files':14,15 'ifs':16 'lights':1A 'loose':12,13 'lord':6B,9C 'lou':5B,8C 'mary':4B,7C 'songwriter':17 'unsorted':11
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', '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'  ['indie', 'indie pop', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1995
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1637330770.9486234  (2021-11-19 15:06:10)
                             'size'  8119848