======================== unified (from filesystem) ========================
                                         'bitrate'  '128.084'
                                        'duration'  '154'
                                          'artist'  "Oscar's Chicago Swingers"
                                     'text_people'  ''
                                         'release'  'Flashbacks, Volume 3: Hot & Sexy: CopulationBlues 1926-1940'
                                           'title'  "I Wonder Who's Boogiein' My Woogie Now"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['1920 1940', 'spotify', 'blues', 'jazz', 'all']"
                                     'discogstags'  "['blues', 'jazz', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '25'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;set-th-sex'
                                             'bpm'  '102.127'
                                             'key'  '6A'
                                        'acoustid'  '9c78a284-13bb-483d-9309-948bc8f15fc8'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000AE3 00000AE3 00007720'
'COMM:iTunNORM:eng'                                 (' 00000AE3 00000AE3 00007720 0000768A 00007AE7 00007AE7 00008000 00008000 '
 '00000216 00000911')
'TALB' (Album/Movie/Show title)                     'Flashbacks, Volume 3: Hot & Sexy: CopulationBlues 1926-1940'
'TBPM' (BPM (beats per minute))                     '102.127'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'set-th-sex']
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-10-16'
'TIT2' (Title/songname/content description)         "I Wonder Who's Boogiein' My Woogie Now"
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               "Oscar's Chicago Swingers"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Trikont'
'TRCK' (Track number/Position in set)               '4/25'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       "Oscar's Chicago Swingers"
'TXXX:ASIN'                                         'B0000517E6'
'TXXX:Acoustid Id'                                  '9c78a284-13bb-483d-9309-948bc8f15fc8'
'TXXX:CATALOGNUMBER'                                'TRIKONT US-0277'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '581f71a9-9ae1-4528-ab6f-08941c988be5'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'a0b5403e-6cd3-46f1-be1c-ff253a577121'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['blues', 'jazz', 'swing']
'TXXX:lastfmtags'                                   ['1920 1940', 'spotify', 'blues', 'jazz', 'all']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                        '+1.23 dB'
'TXXX:replaygain_track_peak'                        '0.423853'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd00eaa5f-9b5c-45ba-b950-96682fec60ec')

========================== row from database ==========================
                                              'id'  1506154
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/v.a. - copulation blues - sex songs - 1926-1940/04 - oscar_s chicago swingers - i wonder who_s boogiein_ my woogie now.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  154
                                           'genre'  prerock-jb-jazz-unsorted;set-th-sex
                                        'filesize'  2482627
                                           'mtime'  1620538205
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country v.a. copulation blues sex songs 04 oscar_s chicago swingers wonder who_s boogiein_ my woogie now prerock jb jazz unsorted;set th sex
                                      'tag_artist'  Oscar's Chicago Swingers
                                     'tag_release'  Flashbacks, Volume 3: Hot & Sexy: CopulationBlues 1926-1940
                                       'tag_title'  I Wonder Who's Boogiein' My Woogie Now
                                             'bpm'  102.127
                                    'search_title'  'boogiein':6,7 'i':1 'my':8 'now':10 's':4 'who':3 'whos':5 'wonder':2 'woogie':9
                                   'search_artist'  'chicago':4 'oscar':1 'oscars':3 's':2 'swingers':5
                                  'search_release'  '1926':10 '19261940':12 '1940':11 '3':4,5 'blues':14 'copulation':13 'copulationblues':9 'flashbacks':1,2 'hot':6 'sexy':7,8 'volume':3
                                     'search_rest'  'a':6 'blues':9 'boogiein':19 'chicago':14 'copulation':8 'country':4 'exotica':2 'jazz':1 'jb':24 'my':20 'now':22 'oldies':3 'oscar':12 'prerock':23 's':13,18 'set':26,28 'sex':10 'songs':11 'swingers':15 'th':29 'unsorted':25,27 'v':5 'va':7 'who':17 'wonder':16 'woogie':21
                                    'search_combo'  '1926':25C '19261940':27C '1940':26C '3':19C,20C 'a':35 'blues':29C,38 'boogiein':6A,7A,48 'chicago':14B,43 'copulation':28C,37 'copulationblues':24C 'country':33 'exotica':31 'flashbacks':16C,17C 'hot':21C 'i':1A 'jazz':30 'jb':53 'my':8A,49 'now':10A,51 'oldies':32 'oscar':11B,41 'oscars':13B 'prerock':52 's':4A,12B,42,47 'set':55,57 'sex':39 'sexy':22C,23C 'songs':40 'swingers':15B,44 'th':58 'unsorted':54,56 'v':34 'va':36 'volume':18C 'who':3A,46 'whos':5A 'wonder':2A,45 'woogie':9A,50
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['1920 1940', 'spotify', 'blues', 'jazz', 'all']
                                        'tag_date'  2000
                                     'discogstags'  ['blues', 'jazz', 'swing']

============================== file details ==============================
                                           'mtime'  1620538204.9036593  (2021-05-09 07:30:04)
                             'size'  2482627