======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '159'
                                          'artist'  'Beaver & Krause'
                                     'text_people'  ''
                                         'release'  'In a Wild Sanctuary / Gandharva'
                                           'title'  "Walkin' by the River"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['avant garde', 'drone', 'electronic', 'experimental', 'psychedelic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '19'
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '124.8'
                                             'key'  '9B'
                                        'acoustid'  'c3ed8ce5-2ca2-4206-8342-8e2c75970bde'
rest: ''

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

'PRIV:AverageLevel:{\x10\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x10\x00\x00')
'PRIV:PeakValue:!n\x00\x00'                         PRIV(owner='PeakValue', data=b'!n\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'In a Wild Sanctuary / Gandharva'
'TBPM' (BPM (beats per minute))                     '124.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDOR' (Original release time)                      '1971'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         "Walkin' by the River"
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Beaver & Krause'
'TPE2' (Band/orchestra/accompaniment)               'Beaver & Krause'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Warner Bros. Records'
'TRCK' (Track number/Position in set)               '14/19'
'TSO2'                                              'Beaver & Krause'
'TSOP' (Performer sort order)                       'Beaver & Krause'
'TXXX:ASIN'                                         'B000002MS6'
'TXXX:Acoustid Id'                                  'c3ed8ce5-2ca2-4206-8342-8e2c75970bde'
'TXXX:CATALOGNUMBER'                                'WS 1909'
'TXXX:MusicBrainz Album Artist Id'                  '939609cc-5fbb-4e05-a310-5929eb068d41'
'TXXX:MusicBrainz Album Id'                         '3dd515f4-fff2-4547-a22b-4deaf7bf6961'
'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'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['avant garde', 'drone', 'electronic', 'experimental', 'psychedelic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.83 dB'
'TXXX:replaygain_track_peak'                        '0.511447'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a2021237-ff3c-450c-b071-867b1048cb4e')

========================== row from database ==========================
                                              'id'  1513308
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Beaver & Krause/[1971] Gandharva/05. Walkin_ By The River.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  159
                                           'genre'  electronic-experimental
                                        'filesize'  2553484
                                           'mtime'  1622801675
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm [1971] 05. Walkin_ By The electronic experimental
                                      'tag_artist'  Beaver & Krause
                                     'tag_release'  In a Wild Sanctuary / Gandharva
                                       'tag_title'  Walkin' by the River
                                             'bpm'  124.8
                                    'search_title'  'by':3 'river':5 'the':4 'walkin':1,2
                                   'search_artist'  'beaver':1 'krause':2
                                  'search_release'  'a':2 'gandharva':5 'in':1 'sanctuary':4 'wild':3
                                     'search_rest'  '05':3,4 '1971':1,2 'by':6 'electronic':8 'experimental':9 'the':7 'walkin':5
                                    'search_combo'  '05':15,16 '1971':13,14 'a':9C 'beaver':6B 'by':3A,18 'electronic':20 'experimental':21 'gandharva':12C 'in':8C 'krause':7B 'river':5A 'sanctuary':11C 'the':4A,19 'walkin':1A,2A,17 'wild':10C
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-3', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['avant garde', 'drone', 'electronic', 'experimental', 'psychedelic']
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622801675.0906184  (2021-06-04 12:14:35)
                             'size'  2553484