======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '120'
                                          'artist'  'Stereo Total'
                                     'text_people'  ''
                                         'release'  'My Melody'
                                           'title'  'Ich liebe dich, Alexander'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'german', 'electronic', 'pop', 'french']"
                                     'discogstags'  "['electronic', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '16'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-pop'
                                             'bpm'  '105'
                                             'key'  '10B'
                                        'acoustid'  '478a4642-faa8-478e-b9df-b57dd7d96545'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TALB' (Album/Movie/Show title)                     'My Melody'
'TBPM' (BPM (beats per minute))                     '105'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-pop'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-10-05'
'TIT2' (Title/songname/content description)         'Ich liebe dich, Alexander'
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Stereo Total'
'TPE2' (Band/orchestra/accompaniment)               'Stereo Total'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Bungalow'
'TRCK' (Track number/Position in set)               '6/16'
'TSO2'                                              'Stereo Total'
'TSOP' (Performer sort order)                       'Stereo Total'
'TXXX:ASIN'                                         'B00001YVCG'
'TXXX:Acoustid Id'                                  '478a4642-faa8-478e-b9df-b57dd7d96545'
'TXXX:Artists'                                      'Stereo Total'
'TXXX:BARCODE'                                      '661407000828'
'TXXX:CATALOGNUMBER'                                'bung 065-2'
'TXXX:MusicBrainz Album Artist Id'                  '475ae7a5-07de-46a8-a88d-4322259aafa9'
'TXXX:MusicBrainz Album Id'                         'b7f012ab-11bc-4776-a7d5-a21ddc24ab40'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '475ae7a5-07de-46a8-a88d-4322259aafa9'
'TXXX:MusicBrainz Release Group Id'                 '7b55b71c-26c3-3191-9aee-06ebd613dbb6'
'TXXX:MusicBrainz Release Track Id'                 '04863662-793a-34b1-9387-ba9959c68623'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'synth-pop']
'TXXX:lastfmtags'                                   ['indie', 'german', 'electronic', 'pop', 'french']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.52 dB'
'TXXX:replaygain_track_peak'                        '0.266160'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'697f1bc2-6e8e-4334-8567-710e8b5ee4c3')

========================== row from database ==========================
                                              'id'  1279051
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Stereo Total/my melody/06 ich liebe dich, alexander.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  120
                                           'genre'  ifs-songwriter-pop
                                        'filesize'  2930300
                                           'mtime'  1621630303
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos my melody 06 alexander ifs songwriter pop
                                      'tag_artist'  Stereo Total
                                     'tag_release'  My Melody
                                       'tag_title'  Ich liebe dich, Alexander
                                             'bpm'  105.0
                                    'search_title'  'alexander':5 'dich':3,4 'ich':1 'liebe':2
                                   'search_artist'  'stereo':1 'total':2
                                  'search_release'  'melody':2 'my':1
                                     'search_rest'  '00singer':1 'alexander':6 'eos':3 'ifs':7 'melody':5 'my':4 'pop':8 'songwriter':2
                                    'search_combo'  '00singer':10 'alexander':5A,15 'dich':3A,4A 'eos':12 'ich':1A 'ifs':16 'liebe':2A 'melody':9C,14 'my':8C,13 'pop':17 'songwriter':11 'stereo':6B 'total':7B
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'german', 'electronic', 'pop', 'french']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1621630302.727215  (2021-05-21 22:51:42)
                             'size'  2930300