======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '204'
                                          'artist'  'Jesse Fuller'
                                     'text_people'  ''
                                         'release'  'Friends of Old Time Music: The Folk Arrival, 1961-1965'
                                           'title'  'San Francisco Bay Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'q-syn-1', 'q-bass-4', "
 "'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['blues', 'folk', 'harmonica', 'acoustic', 'one man band']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '19'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'loc-namerica'
                                             'bpm'  '103'
                                             'key'  '7A'
                                        'acoustid'  'd8887277-3e63-4370-aa5d-f026ff05f9dd'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Friends of Old Time Music: The Folk Arrival, 1961-1965'
'TBPM' (BPM (beats per minute))                     '103'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '1965'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Peter K. Siegel']])
'TIT2' (Title/songname/content description)         'San Francisco Bay Blues'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Jesse Fuller'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/3'
'TPUB' (Publisher)                                  'Smithsonian Folkways'
'TRCK' (Track number/Position in set)               '12/19'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Fuller, Jesse'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, LAME dll 3.97, 320 Kbit/s, Stereo, High quality'
'TXXX:ASIN'                                         'B000H4W90S'
'TXXX:Acoustid Id'                                  'd8887277-3e63-4370-aa5d-f026ff05f9dd'
'TXXX:Artists'                                      'Jesse Fuller'
'TXXX:BARCODE'                                      '093074016022'
'TXXX:CATALOGNUMBER'                                'SFW CD 40160'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'cf2f8499-2ee5-4433-abde-3fc3a080ea9a'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        'e148154d-e1fb-4da4-8db2-d54bf9a894b8'
'TXXX:MusicBrainz Release Group Id'                 '44a7e1d4-439c-3da6-b676-27e319349a0c'
'TXXX:MusicBrainz Release Track Id'                 '321688e9-d600-3b0a-91ed-7e2acafb81ad'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['blues', 'folk', 'harmonica', 'acoustic', 'one man band']
'TXXX:mood'                                         'Relaxed/Not aggressive/Not party/Not electronic/Happy/Acoustic/Sad'
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.18 dB'
'TXXX:replaygain_track_peak'                        '0.477667'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e27eb12f-991f-4f0a-a2e0-46d30e6dee79')

========================== row from database ==========================
                                              'id'  1476888
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Friends of Old Time Music - Cd 2/12 - Jessie Fuller - San Francisco Bay Blues.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  204
                                           'genre'  loc-namerica
                                        'filesize'  8238486
                                           'mtime'  1621627949
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Cd 2 12 Jessie loc namerica
                                      'tag_artist'  Jesse Fuller
                                     'tag_release'  Friends of Old Time Music: The Folk Arrival, 1961-1965
                                       'tag_title'  San Francisco Bay Blues
                                             'bpm'  103.0
                                    'search_title'  'bay':3 'blues':4 'francisco':2 'san':1
                                   'search_artist'  'fuller':2 'jesse':1
                                  'search_release'  '1961':11 '19611965':13 '1965':12 'arrival':9,10 'folk':8 'friends':1 'music':5,6 'of':2 'old':3 'the':7 'time':4
                                     'search_rest'  '2':6 'cd':5 'country':4 'exotica':2 'jazz':1 'jessie':7 'loc':8 'namerica':9 'oldies':3
                                    'search_combo'  '1961':17C '19611965':19C '1965':18C '2':25 'arrival':15C,16C 'bay':3A 'blues':4A 'cd':24 'country':23 'exotica':21 'folk':14C 'francisco':2A 'friends':7C 'fuller':6B 'jazz':20 'jesse':5B 'jessie':26 'loc':27 'music':11C,12C 'namerica':28 'of':8C 'old':9C 'oldies':22 'san':1A 'the':13C 'time':10C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'folk', 'harmonica', 'acoustic', 'one man band']
                                        'tag_date'  1965
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1621627949.4844859  (2021-05-21 22:12:29)
                             'size'  8238486