======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '166'
                                          'artist'  'Tampa Red'
                                     'text_people'  ''
                                         'release'  'Bottleneck Guitar 1928-1937'
                                           'title'  'House Rent Scuffle'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'blues', 'mississippi', 'chicago blues', 'classic blues']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '14'
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '143.517'
                                             'key'  '1A'
                                        'acoustid'  '56b10570-aa6c-49c6-b3d6-6ce4c5f128fa'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Bottleneck Guitar 1928-1937'
'TBPM' (BPM (beats per minute))                     '143.517'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'House Rent Scuffle'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tampa Red'
'TPE2' (Band/orchestra/accompaniment)               'Tampa Red'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '14/14'
'TSO2'                                              'Tampa Red'
'TSOP' (Performer sort order)                       'Tampa Red'
'TXXX:ASIN'                                         'B000000G7L'
'TXXX:Acoustid Id'                                  '56b10570-aa6c-49c6-b3d6-6ce4c5f128fa'
'TXXX:MusicBrainz Album Artist Id'                  '1b62df85-00d2-464f-81bc-a5c0cdcad278'
'TXXX:MusicBrainz Album Id'                         'e1a2f3ad-c4c5-4f70-ac5b-e4d2f5923803'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Artist Id'                        '1b62df85-00d2-464f-81bc-a5c0cdcad278'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['guitar', 'blues', 'mississippi', 'chicago blues', 'classic blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.28 dB'
'TXXX:replaygain_track_peak'                        '0.425170'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'25c2c22d-914b-4288-b0c0-579ec155f441')

========================== row from database ==========================
                                              'id'  1534011
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/30_s collection/tampa red_s hokum jug band - bottleneck guitar 1928-1937.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  166
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2675107
                                           'mtime'  1620527939
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 30_s collection tampa red_s hokum jug band bottleneck guitar prerock jb jazz unsorted
                                      'tag_artist'  Tampa Red
                                     'tag_release'  Bottleneck Guitar 1928-1937
                                       'tag_title'  House Rent Scuffle
                                             'bpm'  143.517
                                    'search_title'  'house':1 'rent':2 'scuffle':3
                                   'search_artist'  'red':2 'tampa':1
                                  'search_release'  '1928':3 '19281937':5 '1937':4 'bottleneck':1 'guitar':2
                                     'search_rest'  '30':5 'band':13 'bottleneck':14 'collection':7 'country':4 'exotica':2 'guitar':15 'hokum':11 'jazz':1 'jb':17 'jug':12 'oldies':3 'prerock':16 'red':9 's':6,10 'tampa':8 'unsorted':18
                                    'search_combo'  '1928':8C '19281937':10C '1937':9C '30':15 'band':23 'bottleneck':6C,24 'collection':17 'country':14 'exotica':12 'guitar':7C,25 'hokum':21 'house':1A 'jazz':11 'jb':27 'jug':22 'oldies':13 'prerock':26 'red':5B,19 'rent':2A 's':16,20 'scuffle':3A 'tampa':4B,18 'unsorted':28
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['guitar', 'blues', 'mississippi', 'chicago blues', 'classic blues']
                                        'tag_date'  1935
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620527938.9484365  (2021-05-09 04:38:58)
                             'size'  2675107