======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '149'
                                          'artist'  'The Isley Brothers With Ray Ellis & Orchestra'
                                     'text_people'  ''
                                         'release'  ('Slow Grind Fever Vol. 3 - More Adventures In The Sleazy World Of Popcorn '
 'Noir (2014)')
                                           'title'  'Teach Me How To Shimmy'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'rock-pop-early'
                                             'bpm'  '92.985'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     ('Slow Grind Fever Vol. 3 - More Adventures In The Sleazy World Of Popcorn '
 'Noir (2014)')
'TBPM' (BPM (beats per minute))                     '92.985'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'Teach Me How To Shimmy'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Isley Brothers With Ray Ellis & Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+1.15 dB'
'TXXX:replaygain_track_peak'                        '0.420191'

========================== row from database ==========================
                                              'id'  947477
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/va - Slow Grind Fever Vol. 3 - More Adventures In The Sleazy World Of Popcorn Noir (2014)/04 - The Isley Brothers With Ray Ellis & Orchestra - Teach Me How To Shimmy.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  149
                                           'genre'  rock-pop-early
                                        'filesize'  6005874
                                           'mtime'  1620736675
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country va 04 rock pop early
                                      'tag_artist'  The Isley Brothers With Ray Ellis & Orchestra
                                     'tag_release'  Slow Grind Fever Vol. 3 - More Adventures In The Sleazy World Of Popcorn Noir (2014)
                                       'tag_title'  Teach Me How To Shimmy
                                             'bpm'  92.985
                                    'search_title'  'how':3 'me':2 'shimmy':5 'teach':1 'to':4
                                   'search_artist'  'brothers':3 'ellis':6 'isley':2 'orchestra':7 'ray':5 'the':1 'with':4
                                  'search_release'  '2014':16,17 '3':6 'adventures':8 'fever':3 'grind':2 'in':9 'more':7 'noir':15 'of':13 'popcorn':14 'sleazy':11 'slow':1 'the':10 'vol':4,5 'world':12
                                     'search_rest'  'country':4 'early':8 'exotica':2 'jazz':1 'oldies':3 'pop':7 'rock':6 'va':5
                                    'search_combo'  '2014':28C,29C '3':18C 'adventures':20C 'brothers':8B 'country':33 'early':37 'ellis':11B 'exotica':31 'fever':15C 'grind':14C 'how':3A 'in':21C 'isley':7B 'jazz':30 'me':2A 'more':19C 'noir':27C 'of':25C 'oldies':32 'orchestra':12B 'pop':36 'popcorn':26C 'ray':10B 'rock':35 'shimmy':5A 'sleazy':23C 'slow':13C 'teach':1A 'the':6B,22C 'to':4A 'va':34 'vol':16C,17C 'with':9B 'world':24C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736674.683563  (2021-05-11 14:37:54)
                             'size'  6005874