======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '36'
                                          'artist'  'Beaver & Krause'
                                     'text_people'  ''
                                         'release'  'Ragnarök'
                                           'title'  'Dill Piccolo Or (Try Not to Twitch)'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['avant garde', 'drone', 'electronic', 'experimental', 'psychedelic']"
                                     'discogstags'  "['electronic', 'rock', 'prog rock', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '108.5'
                                             'key'  '9B'
                                        'acoustid'  'bbf049e2-3a2c-4d65-b645-6b3f68eac6a8'
rest: ''

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

'PRIV:AverageLevel:{\x08\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x08\x00\x00')
'PRIV:PeakValue:!7\x00\x00'                         PRIV(owner='PeakValue', data=b'!7\x00\x00')
'TALB' (Album/Movie/Show title)                     'Ragnarök'
'TBPM' (BPM (beats per minute))                     '108.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDOR' (Original release time)                      '1969'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Dill Piccolo Or (Try Not to Twitch)'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Beaver & Krause'
'TPE2' (Band/orchestra/accompaniment)               'Beaver & Krause'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Limelight'
'TRCK' (Track number/Position in set)               '4/11'
'TSO2'                                              'Beaver & Krause'
'TSOP' (Performer sort order)                       'Beaver & Krause'
'TXXX:Acoustid Id'                                  'bbf049e2-3a2c-4d65-b645-6b3f68eac6a8'
'TXXX:CATALOGNUMBER'                                'LS 86069'
'TXXX:MusicBrainz Album Artist Id'                  '939609cc-5fbb-4e05-a310-5929eb068d41'
'TXXX:MusicBrainz Album Id'                         'a7af4564-69cf-48b1-aab7-8162592004d5'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '939609cc-5fbb-4e05-a310-5929eb068d41'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'prog rock', 'experimental']
'TXXX:lastfmtags'                                   ['avant garde', 'drone', 'electronic', 'experimental', 'psychedelic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.430816'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e60e6f17-bdf5-4ec0-9071-a2804b17959c')

========================== row from database ==========================
                                              'id'  771691
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Beaver & Krause/[1968] Ragnarök/04. Dill Piccolo.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  36
                                           'genre'  electronic-experimental
                                        'filesize'  587044
                                           'mtime'  1622801665
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm [1968] 04. electronic experimental
                                      'tag_artist'  Beaver & Krause
                                     'tag_release'  Ragnarök
                                       'tag_title'  Dill Piccolo Or (Try Not to Twitch)
                                             'bpm'  108.5
                                    'search_title'  'dill':1 'not':6 'or':3 'piccolo':2 'to':7 'try':4,5 'twitch':8,9
                                   'search_artist'  'beaver':1 'krause':2
                                  'search_release'  'ragnarok':1,2
                                     'search_rest'  '04':3,4 '1968':1,2 'electronic':5 'experimental':6
                                    'search_combo'  '04':16,17 '1968':14,15 'beaver':10B 'dill':1A 'electronic':18 'experimental':19 'krause':11B 'not':6A 'or':3A 'piccolo':2A 'ragnarok':12C,13C 'to':7A 'try':4A,5A 'twitch':8A,9A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['avant garde', 'drone', 'electronic', 'experimental', 'psychedelic']
                                        'tag_date'  1969
                                     'discogstags'  ['electronic', 'rock', 'prog rock', 'experimental']

============================== file details ==============================
                                           'mtime'  1622801665.1594455  (2021-06-04 12:14:25)
                             'size'  587044