======================== unified (from filesystem) ========================
                                         'bitrate'  '159.983'
                                        'duration'  '240'
                                          'artist'  'Aretha Franklin & George Micha'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 - 1987'
                                           'title'  'I Knew You Were Wait'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['pop', 'soul', '80s', 'male vocalists', 'duet']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;set-pl-billboard'
                                             'bpm'  '107.893'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Billboard Top 100 - 1987'
'TBPM' (BPM (beats per minute))                     '107.893'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'I Knew You Were Wait'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Aretha Franklin & George Micha'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', 'soul', '80s', 'male vocalists', 'duet']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'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'                        '+9.03 dB'
'TXXX:replaygain_track_peak'                        '0.217955'

========================== row from database ==========================
                                              'id'  1345105
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/036 - Aretha Franklin !26 George Michael - I Knew You Were Wait.mp3
                                         'working'  None
                                         'bitrate'  159
                                    'duration_sec'  240
                                           'genre'  prerock-jb-jazz-unsorted;set-pl-billboard
                                        'filesize'  4813803
                                           'mtime'  1620540793
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 036 !26 Michael prerock jb jazz unsorted;set pl billboard
                                      'tag_artist'  Aretha Franklin & George Micha
                                     'tag_release'  Billboard Top 100 - 1987
                                       'tag_title'  I Knew You Were Wait
                                             'bpm'  107.893
                                    'search_title'  'i':1 'knew':2 'wait':5 'were':4 'you':3
                                   'search_artist'  'aretha':1 'franklin':2 'george':3 'micha':4
                                  'search_release'  '100':3 '1987':4 'billboard':1 'top':2
                                     'search_rest'  '00poprockelectronic':1 '26':2 'billboard':12 'jazz':6 'jb':5 'michael':3 'pl':11 'prerock':4 'set':8,10 'unsorted':7,9
                                    'search_combo'  '00poprockelectronic':14 '100':12C '1987':13C '26':15 'aretha':6B 'billboard':10C,25 'franklin':7B 'george':8B 'i':1A 'jazz':19 'jb':18 'knew':2A 'micha':9B 'michael':16 'pl':24 'prerock':17 'set':21,23 'top':11C 'unsorted':20,22 'wait':5A 'were':4A 'you':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['pop', 'soul', '80s', 'male vocalists', 'duet']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620540792.6723459  (2021-05-09 08:13:12)
                             'size'  4813803