======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '309'
                                          'artist'  'The Swinging Tigers'
                                     'text_people'  ''
                                         'release'  'Slow Grind Fever Vol. 7'
                                           'title'  'Snake Walk, Pts.1 & 2'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-OLDST-1', 'q-chart-1', 'q-drums-3', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['motown', 'soul', 'instrumental', 'oldies', 'obscure oldies']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'rock-pop-early'
                                             'bpm'  '115.920'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Slow Grind Fever Vol. 7'
'TBPM' (BPM (beats per minute))                     '115.920'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'Snake Walk, Pts.1 & 2'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Swinging Tigers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '14'
'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:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['motown', 'soul', 'instrumental', 'oldies', 'obscure oldies']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.25 dB'
'TXXX:replaygain_track_peak'                        '0.388484'

========================== row from database ==========================
                                              'id'  947607
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/va - Slow Grind Fever Vol. 7/B7 - The Swinging Tigers - Snake Walk, Pts.1 & 2.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  309
                                           'genre'  rock-pop-early
                                        'filesize'  12522706
                                           'mtime'  1620736723
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country va B7 rock pop early
                                      'tag_artist'  The Swinging Tigers
                                     'tag_release'  Slow Grind Fever Vol. 7
                                       'tag_title'  Snake Walk, Pts.1 & 2
                                             'bpm'  115.92
                                    'search_title'  '1':5 '2':7 'pts':4 'pts1':6 'snake':1 'walk':2,3
                                   'search_artist'  'swinging':2 'the':1 'tigers':3
                                  'search_release'  '7':6 'fever':3 'grind':2 'slow':1 'vol':4,5
                                     'search_rest'  'b7':6 'country':4 'early':9 'exotica':2 'jazz':1 'oldies':3 'pop':8 'rock':7 'va':5
                                    'search_combo'  '1':5A '2':7A '7':16C 'b7':22 'country':20 'early':25 'exotica':18 'fever':13C 'grind':12C 'jazz':17 'oldies':19 'pop':24 'pts':4A 'pts1':6A 'rock':23 'slow':11C 'snake':1A 'swinging':9B 'the':8B 'tigers':10B 'va':21 'vol':14C,15C 'walk':2A,3A
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['motown', 'soul', 'instrumental', 'oldies', 'obscure oldies']
                                        'tag_date'  1955
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620736723.3622885  (2021-05-11 14:38:43)
                             'size'  12522706