======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '174'
                                          'artist'  "Harlem Hamfats with Frankie 'halfpint' Jaxon"
                                     'text_people'  ''
                                         'release'  'Geil & Sexy - Copulation Blues'
                                           'title'  "Harlem Hamfats with Frankie 'halfpint' Jaxon - Wet It !"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'dikovato']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '145.5'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Geil & Sexy - Copulation Blues'
'TBPM' (BPM (beats per minute))                     '145.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         "Harlem Hamfats with Frankie 'halfpint' Jaxon - Wet It !"
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               "Harlem Hamfats with Frankie 'halfpint' Jaxon"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'dikovato']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.47 dB'
'TXXX:replaygain_track_peak'                        '0.311199'

========================== row from database ==========================
                                              'id'  1499213
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Bob Howe & Frankie Giggs - Flashbacks - 1920s-1940 2. Geil & Sexy - Copulation Blues/06 - Harlem Hamfats with Frankie _halfpint_ Jaxon - Wet It !.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  174
                                           'genre'  prerock-jb-blues
                                        'filesize'  2791012
                                           'mtime'  1620402239
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Bob Howe Giggs Flashbacks 1920s 1940 2. 06 _halfpint_ prerock jb blues
                                      'tag_artist'  Harlem Hamfats with Frankie 'halfpint' Jaxon
                                     'tag_release'  Geil & Sexy - Copulation Blues
                                       'tag_title'  Harlem Hamfats with Frankie 'halfpint' Jaxon - Wet It !
                                             'bpm'  145.5
                                    'search_title'  'frankie':4 'halfpint':5,6 'hamfats':2 'harlem':1 'it':9 'jaxon':7 'wet':8 'with':3
                                   'search_artist'  'frankie':4 'halfpint':5,6 'hamfats':2 'harlem':1 'jaxon':7 'with':3
                                  'search_release'  'blues':4 'copulation':3 'geil':1 'sexy':2
                                     'search_rest'  '1920s':9 '1940':10 '2':11,12 'blues':16 'bob':5 'country':4 'exotica':2 'flashbacks':8 'giggs':7 'halfpint':13 'howe':6 'jazz':1 'jb':15 'oldies':3 'prerock':14
                                    'search_combo'  '1920s':29 '1940':30 '2':31,32 'blues':20C,36 'bob':25 'copulation':19C 'country':24 'exotica':22 'flashbacks':28 'frankie':4A,13B 'geil':17C 'giggs':27 'halfpint':5A,6A,14B,15B,33 'hamfats':2A,11B 'harlem':1A,10B 'howe':26 'it':9A 'jaxon':7A,16B 'jazz':21 'jb':35 'oldies':23 'prerock':34 'sexy':18C 'wet':8A 'with':3A,12B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'dikovato']
                                        'tag_date'  1930
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620402239.1610372  (2021-05-07 17:43:59)
                             'size'  2791012