======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '560'
                                          'artist'  'Van Morrison'
                                     'text_people'  ''
                                         'release'  'Moondance'
                                           'title'  'Caravan'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-vocals-3', 'q-mixbeat-2', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['rock', 'singer songwriter', 'blues', 'folk', 'classic rock']"
                                     'discogstags'  "['jazz', 'folk, world, & country', 'jazz-rock', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '10'
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock'
                                             'bpm'  '85.9'
                                             'key'  '7B'
                                        'acoustid'  'e532a25e-978c-4905-8081-7a2c03cac879'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Moondance'
'TBPM' (BPM (beats per minute))                     '85.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Caravan'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Van Morrison'
'TPE2' (Band/orchestra/accompaniment)               'Van Morrison'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Warner Bros. Records'
'TRCK' (Track number/Position in set)               '4/10'
'TSO2'                                              'Morrison, Van'
'TSOP' (Performer sort order)                       'Morrison, Van'
'TSRC' (ISRC (international standard recording code))  'USWB11302506/USWB19900491'
'TXXX:Acoustid Id'                                  'e532a25e-978c-4905-8081-7a2c03cac879'
'TXXX:Artists'                                      'Van Morrison'
'TXXX:BARCODE'                                      '07599273262'
'TXXX:CATALOGNUMBER'                                '246 040/3103-2'
'TXXX:Mp3gain_minmax'                               '028,194'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'TXXX:MusicBrainz Album Artist Id'                  'a41ac10f-0a56-4672-9161-b83f9b223559'
'TXXX:MusicBrainz Album Id'                         '8ad96be0-a766-4f25-ad66-30b22ea2e4b4'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a41ac10f-0a56-4672-9161-b83f9b223559'
'TXXX:MusicBrainz Release Group Id'                 '16506432-d133-3b2f-a504-dc88966dad2a'
'TXXX:MusicBrainz Release Track Id'                 'df13c56e-42db-4d50-81e7-704a9cd3388e'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:Tracknum'                                     '04'
'TXXX:discogstags'                                  ['jazz', 'folk, world, & country', 'jazz-rock', 'folk']
'TXXX:lastfmtags'                                   ['rock', 'singer songwriter', 'blues', 'folk', 'classic rock']
'TXXX:originalyear'                                 '1970'
'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-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.40 dB'
'TXXX:replaygain_track_peak'                        '0.475566'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'28c3ba02-c616-46f4-9dd2-c7b94123f956')

========================== row from database ==========================
                                              'id'  1274761
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Van Morrison/Moondance/Van Morrison - Caravan - 04.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  560
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  11305900
                                           'mtime'  1637522999
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 04 ifs songwriter rock
                                      'tag_artist'  Van Morrison
                                     'tag_release'  Moondance
                                       'tag_title'  Caravan
                                             'bpm'  85.9
                                    'search_title'  'caravan':1
                                   'search_artist'  'morrison':2 'van':1
                                  'search_release'  'moondance':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'rock':5 'songwriter':2
                                    'search_combo'  '00singer':5 'caravan':1A 'eos':7 'ifs':8 'moondance':4C 'morrison':3B 'rock':9 'songwriter':6 'van':2B
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'Q-PIANO-2', 'q-mixbeat-2', '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-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'singer songwriter', 'blues', 'folk', 'classic rock']
                                        'tag_date'  1990
                                     'discogstags'  ['jazz', 'folk, world, & country', 'jazz-rock', 'folk']

============================== file details ==============================
                                           'mtime'  1637522999.2744706  (2021-11-21 20:29:59)
                             'size'  11305900