======================== unified (from filesystem) ========================
                                         'bitrate'  '214.329'
                                        'duration'  '146'
                                          'artist'  'Musette'
                                     'text_people'  ''
                                         'release'  'Datum'
                                           'title'  '4 September'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'acoustic', 'piano', 'swedish', 'folk']"
                                     'discogstags'  "['neo-romantic', 'classical', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '14'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '102.282'
                                             'key'  '9B'
                                        'acoustid'  'fae3ca53-4d60-4dbf-aa3a-5967fb9ea430'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Datum'
'TBPM' (BPM (beats per minute))                     '102.282'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009-02-24'
'TIT2' (Title/songname/content description)         '4 September'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Musette'
'TPE2' (Band/orchestra/accompaniment)               'Musette'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Tona Serenad'
'TRCK' (Track number/Position in set)               '14/14'
'TSO2'                                              'Musette'
'TSOP' (Performer sort order)                       'Musette'
'TXXX:Acoustid Id'                                  'fae3ca53-4d60-4dbf-aa3a-5967fb9ea430'
'TXXX:CATALOGNUMBER'                                'TS01'
'TXXX:FIRST_PLAYED'                                 '2012-05-10 22:12:11'
'TXXX:MusicBrainz Album Artist Id'                  '7f9a10d3-3a5d-4a39-ba5c-3b36bd78a06c'
'TXXX:MusicBrainz Album Id'                         'a5183c02-47a4-4bd8-8dca-fb4a57e5e137'
'TXXX:MusicBrainz Album Release Country'            'SE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7f9a10d3-3a5d-4a39-ba5c-3b36bd78a06c'
'TXXX:PLAY_COUNTER'                                 '30'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['neo-romantic', 'classical', 'pop']
'TXXX:lastfmtags'                                   ['instrumental', 'acoustic', 'piano', 'swedish', 'folk']
'TXXX:mp3gain_minmax'                               '132,249'
'TXXX:mp3gain_undo'                                 '+006,+006,N'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.05 dB'
'TXXX:replaygain_track_peak'                        '0.499381'

========================== row from database ==========================
                                              'id'  1301782
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Musette - Datum/14 - 4 September.mp3
                                         'working'  None
                                         'bitrate'  214
                                    'duration_sec'  146
                                           'genre'  electronic
                                        'filesize'  4005645
                                           'mtime'  1636913234
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer 14 electronic
                                      'tag_artist'  Musette
                                     'tag_release'  Datum
                                       'tag_title'  4 September
                                             'bpm'  102.282
                                    'search_title'  '4':1 'september':2
                                   'search_artist'  'musette':1
                                  'search_release'  'datum':1
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 'electronic':3
                                    'search_combo'  '00calmer':6 '00poprockelectronic':5 '4':1A 'datum':4C 'electronic':7 'musette':3B 'september':2A
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'acoustic', 'piano', 'swedish', 'folk']
                                        'tag_date'  2009
                                     'discogstags'  ['neo-romantic', 'classical', 'pop']

============================== file details ==============================
                                           'mtime'  1636913234.122462  (2021-11-14 19:07:14)
                             'size'  4005645