======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '231'
                                          'artist'  'Sorcery'
                                     'text_people'  ''
                                         'release'  'Sinister Soldiers'
                                           'title'  "Slippin' Away"
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-3', "
 "'Q-CHART-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  ("['swedish', 'hard rock', 'death metal', 'old school death metal', 'sweden', "
 "'swedish death metal']")
                                     'discogstags'  "['death metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '9'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '130.8'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:Songs-DB_Custom2:XXX'                         'USA'
'TALB' (Album/Movie/Show title)                     'Sinister Soldiers'
'TBPM' (BPM (beats per minute))                     '130.8'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         "Slippin' Away"
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sorcery'
'TPE2' (Band/orchestra/accompaniment)               'Sorcery'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Dodo Records'
'TRCK' (Track number/Position in set)               '5/9'
'TSO2'                                              'Sorcery'
'TSOP' (Performer sort order)                       'Sorcery'
'TXXX:Artists'                                      'Sorcery'
'TXXX:BARCODE'                                      '8026575512726'
'TXXX:CATALOGNUMBER'                                'DDR 512'
'TXXX:MusicBrainz Album Artist Id'                  '339a3055-5da7-4e9a-b700-0f15eb71819f'
'TXXX:MusicBrainz Album Id'                         '871a03be-f571-41e1-b848-812dc80ffc2d'
'TXXX:MusicBrainz Album Release Country'            'IT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '339a3055-5da7-4e9a-b700-0f15eb71819f'
'TXXX:MusicBrainz Release Group Id'                 '0ddc2f13-4715-3cac-82e7-80c5dbb99393'
'TXXX:MusicBrainz Release Track Id'                 'a8d8a6d1-14d0-4b1e-b888-081fb51e6bb9'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['death metal', 'rock']
'TXXX:lastfmtags'                                   ['swedish',
 'hard rock',
 'death metal',
 'old school death metal',
 'sweden',
 'swedish death metal']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.728101'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'77b6ceff-c52f-4188-8b5e-dbf736ae7c40')

========================== row from database ==========================
                                              'id'  1477954
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/SORCERY [USA] - 1978 - Sinister Soldiers/02 - Slippin Away (For K.E.R.).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  231
                                           'genre'  rock-cppex
                                        'filesize'  9344884
                                           'mtime'  1621508835
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy SORCERY [USA] 1978 02 (For K.E.R.) rock cppex
                                      'tag_artist'  Sorcery
                                     'tag_release'  Sinister Soldiers
                                       'tag_title'  Slippin' Away
                                             'bpm'  130.8
                                    'search_title'  'away':3 'slippin':1,2
                                   'search_artist'  'sorcery':1
                                  'search_release'  'sinister':1 'soldiers':2
                                     'search_rest'  '1978':5 'classicprogpsy':1 'cppex':13 'e':9 'for':6,7 'k':8 'ker':11 'r':10 'rock':12 'sorcery':2 'usa':3,4
                                    'search_combo'  '1978':11 'away':3A 'classicprogpsy':7 'cppex':19 'e':15 'for':12,13 'k':14 'ker':17 'r':16 'rock':18 'sinister':5C 'slippin':1A,2A 'soldiers':6C 'sorcery':4B,8 'usa':9,10
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-3', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['swedish', 'hard rock', 'death metal', 'old school death metal', 'sweden', 'swedish death metal']
                                        'tag_date'  2011
                                     'discogstags'  ['death metal', 'rock']

============================== file details ==============================
                                           'mtime'  1621508835.301687  (2021-05-20 13:07:15)
                             'size'  9344884