======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '160'
                                          'artist'  'The Shirelles'
                                     'text_people'  ''
                                         'release'  'Number 1 Hits CD1'
                                           'title'  'Will You Love Me'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['60s', 'oldies', 'female vocalists', 'soul', 'pop', 'girl groups']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '137.013'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Number 1 Hits CD1'
'TBPM' (BPM (beats per minute))                     '137.013'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Will You Love Me'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Shirelles'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '077,209'
'TXXX:Mp3gain_undo'                                 '+001,+001,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '16'
'TXXX:lastfmtags'                                   ['60s', 'oldies', 'female vocalists', 'soul', 'pop', 'girl groups']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.35 dB'
'TXXX:replaygain_track_peak'                        '0.693742'

========================== row from database ==========================
                                              'id'  1406448
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Number 1 hits cd 1/16 The Shirelles - Will You Love Me .mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  160
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  3862867
                                           'mtime'  1621853887
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat hits cd 16 electronic generic or radio dance
                                      'tag_artist'  The Shirelles
                                     'tag_release'  Number 1 Hits CD1
                                       'tag_title'  Will You Love Me
                                             'bpm'  137.013
                                    'search_title'  'love':3 'me':4 'will':1 'you':2
                                   'search_artist'  'shirelles':2 'the':1
                                  'search_release'  '1':2 'cd1':4 'hits':3 'number':1
                                     'search_rest'  '00poprockelectronic':1 'cd':6 'dance':3 'electronic':7 'generic':2 'hits':5 'or':8 'radio':9 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':11 '1':8C 'cd':16 'cd1':10C 'dance':13 'electronic':17 'generic':12 'hits':9C,15 'love':3A 'me':4A 'number':7C 'or':18 'radio':19 'shirelles':6B 'the':5B 'trapbeat':14 'will':1A 'you':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'oldies', 'female vocalists', 'soul', 'pop', 'girl groups']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853886.7951875  (2021-05-24 12:58:06)
                             'size'  3862867