======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '278'
                                          'artist'  'Ani DiFranco'
                                     'text_people'  ''
                                         'release'  'Up Up Up Up Up Up'
                                           'title'  'Know Now Then'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '11'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '99'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Up Up Up Up Up Up'
'TBPM' (BPM (beats per minute))                     '99'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-01-19'
'TIT2' (Title/songname/content description)         'Know Now Then'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '278066'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Ani DiFranco'
'TPE2' (Band/orchestra/accompaniment)               'Ani DiFranco'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Righteous Babe Records'
'TRCK' (Track number/Position in set)               '9/11'
'TSO2'                                              'DiFranco, Ani'
'TSOP' (Performer sort order)                       'DiFranco, Ani'
'TSRC' (ISRC (international standard recording code))  'RB4US9800009'
'TXXX:ASIN'                                         'B00000G4NS'
'TXXX:Artists'                                      'Ani DiFranco'
'TXXX:BARCODE'                                      '748731701321'
'TXXX:CATALOGNUMBER'                                'RBR013-D'
'TXXX:MusicBrainz Album Artist Id'                  'a7bdc71f-697a-45d9-92b2-a01fbbe50272'
'TXXX:MusicBrainz Album Id'                         '8de6670c-c31d-415e-8be3-21c01fd36a4d'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a7bdc71f-697a-45d9-92b2-a01fbbe50272'
'TXXX:MusicBrainz Release Group Id'                 '07a48cd5-2fd5-3c3f-b61b-569ecd2c86e0'
'TXXX:MusicBrainz Release Track Id'                 '7ca9bd15-5a72-3de0-9d57-92e8367f6342'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'folk rock']
'TXXX:lastfmtags'                                   ['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:mood'                                         'Relaxed/Not aggressive/Not party/Electronic/Not happy/Not acoustic/Not sad'
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                        '+1.86 dB'
'TXXX:replaygain_track_peak'                        '0.714241'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'40f76f95-a151-47ac-b089-ec887b73a048')

========================== row from database ==========================
                                              'id'  1374863
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Ani DiFranco/Up Up Up Up Up Up/Know Now Then.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  278
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  4533927
                                           'mtime'  1636400716
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos ifs songwriter folk
                                      'tag_artist'  Ani DiFranco
                                     'tag_release'  Up Up Up Up Up Up
                                       'tag_title'  Know Now Then
                                             'bpm'  99.0
                                    'search_title'  'know':1 'now':2 'then':3
                                   'search_artist'  'ani':1 'di':3 'difranco':2 'franco':4
                                  'search_release'  'up':1
                                     'search_rest'  '00singer':1 '00songwriter':4 'eos':3 'folk':6 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':9 '00songwriter':12 'ani':4B 'di':6B 'difranco':5B 'eos':11 'folk':14 'franco':7B 'ifs':13 'know':1A 'now':2A 'songwriter':10 'then':3A 'up':8C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  8A
                                           '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1999
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1636400715.5882914  (2021-11-08 20:45:15)
                             'size'  4533927