======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '55'
                                          'artist'  'Aranis'
                                     'text_people'  ''
                                         'release'  'RoqueForte'
                                           'title'  'Ps'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-2', 'Q-PLAY-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-3', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['chamber rock', '12', 'avant garde', 'folk', 'belgian']"
                                     'discogstags'  "['classical', 'neo-classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '12'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '134.1'
                                             'key'  '8A'
                                        'acoustid'  '71ea884e-1220-4da2-ab0c-58401d1aaaf0'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'RoqueForte'
'TBPM' (BPM (beats per minute))                     '134.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Ps'
'TKEY' (Initial key)                                '8A'
'TLAN' (Language(s))                                'eng'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Aranis'
'TPE2' (Band/orchestra/accompaniment)               'Aranis'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'homerecords.be'
'TRCK' (Track number/Position in set)               '12/12'
'TSO2'                                              'Aranis'
'TSOP' (Performer sort order)                       'Aranis'
'TSRC' (ISRC (international standard recording code))  'BEW631006812'
'TXXX:ASIN'                                         'B0046440XE'
'TXXX:Acoustid Id'                                  '71ea884e-1220-4da2-ab0c-58401d1aaaf0'
'TXXX:MusicBrainz Album Artist Id'                  '726c4aad-246b-4a28-995b-c02939023a40'
'TXXX:MusicBrainz Album Id'                         'a39d246d-fb5c-4377-a654-ffbce7cc3b86'
'TXXX:MusicBrainz Album Release Country'            'BE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '726c4aad-246b-4a28-995b-c02939023a40'
'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'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['classical', 'neo-classical']
'TXXX:lastfmtags'                                   ['chamber rock', '12', 'avant garde', 'folk', 'belgian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.19 dB'
'TXXX:replaygain_track_peak'                        '0.500191'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'50971e3b-54f7-4069-9a4f-7ae8f79cd24a')

========================== row from database ==========================
                                              'id'  637502
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/aranis - roqueforte/12 - Aranis - PS.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  55
                                           'genre'  electronic-experimental
                                        'filesize'  2230896
                                           'mtime'  1622801693
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm aranis roqueforte 12 PS electronic experimental
                                      'tag_artist'  Aranis
                                     'tag_release'  RoqueForte
                                       'tag_title'  Ps
                                             'bpm'  134.1
                                    'search_title'  'ps':1
                                   'search_artist'  'aranis':1
                                  'search_release'  'forte':3 'roque':2 'roqueforte':1
                                     'search_rest'  'aranis':1 'electronic':4 'experimental':5 'ps':3 'roqueforte':2
                                    'search_combo'  'aranis':2B,6 'electronic':9 'experimental':10 'forte':5C 'ps':1A,8 'roque':4C 'roqueforte':3C,7
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'Q-PLAY-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['chamber rock', '12', 'avant garde', 'folk', 'belgian']
                                        'tag_date'  2010
                                     'discogstags'  ['classical', 'neo-classical']

============================== file details ==============================
                                           'mtime'  1622801693.2478492  (2021-06-04 12:14:53)
                             'size'  2230896