======================== unified (from filesystem) ========================
                                         'bitrate'  '319.963'
                                        'duration'  '226'
                                          'artist'  'Hauschka'
                                     'text_people'  ''
                                         'release'  'Substantial'
                                           'title'  'Dark I'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-3', 'q-syn-1', 'q-bass-1', 'q-busy-1', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'contemporary classical', 'piano', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic', 'modern classical', 'experimental', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments;electronic'
                                             'bpm'  '133.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'POPM:no@email'                                     POPM(email='no@email', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Substantial'
'TBPM' (BPM (beats per minute))                     '133.0'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-classical or classical instruments', 'electronic']
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Dark I'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Hauschka'
'TPE2' (Band/orchestra/accompaniment)               'Hauschka'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Karaoke Kalk'
'TRCK' (Track number/Position in set)               '4/11'
'TSO2'                                              'Hauschka'
'TSOP' (Performer sort order)                       'Hauschka'
'TXXX:ASIN'                                         'B0001E701W'
'TXXX:CATALOGNUMBER'                                'karaoke kalk cd 25'
'TXXX:MusicBrainz Album Artist Id'                  '767026a6-9e39-463b-9d04-ed0f86ac5ee7'
'TXXX:MusicBrainz Album Id'                         '0a83bf25-2c72-4407-9524-f3103a584e2b'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '767026a6-9e39-463b-9d04-ed0f86ac5ee7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'modern classical', 'experimental', 'ambient']
'TXXX:lastfmtags'                                   ['instrumental', 'contemporary classical', 'piano', 'experimental', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.08 dB'
'TXXX:replaygain_track_peak'                        '0.707061'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'009baec8-a17e-496e-9df4-37ec8a1a2a13')

========================== row from database ==========================
                                              'id'  636389
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/substantial [2004]/04 dark i.mp3
                                         'working'  None
                                         'bitrate'  319
                                    'duration_sec'  226
                                           'genre'  prerock-classical or classical instruments;electronic
                                        'filesize'  9082190
                                           'mtime'  1636912893
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm substantial [2004] 04 dark prerock classical or classical instruments;electronic
                                      'tag_artist'  Hauschka
                                     'tag_release'  Substantial
                                       'tag_title'  Dark I
                                             'bpm'  133.0
                                    'search_title'  'dark':1 'i':2
                                   'search_artist'  'hauschka':1
                                  'search_release'  'substantial':1
                                     'search_rest'  '2004':2,3 'classical':6 'dark':4 'electronic':9,11 'instruments':8,10 'or':7 'prerock':5 'substantial':1
                                    'search_combo'  '2004':6,7 'classical':10 'dark':1A,8 'electronic':13,15 'hauschka':3B 'i':2A 'instruments':12,14 'or':11 'prerock':9 'substantial':4C,5
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'contemporary classical', 'piano', 'experimental', 'ambient']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'modern classical', 'experimental', 'ambient']

============================== file details ==============================
                                           'mtime'  1636912892.7317793  (2021-11-14 19:01:32)
                             'size'  9082190