======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '167'
                                          'artist'  'Gaye, Marvin'
                                     'text_people'  ''
                                         'release'  'Anthology'
                                           'title'  'Can I Get A Witness'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soul', 'motown', 'funk', 'rhythm and blues', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1963'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '84.070'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Anthology'
'TBPM' (BPM (beats per minute))                     '84.070'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1963'
'TIT2' (Title/songname/content description)         'Can I Get A Witness'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gaye, Marvin'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'motown', 'funk', 'rhythm and blues', '70s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.58 dB'
'TXXX:replaygain_track_peak'                        '0.486437'

========================== row from database ==========================
                                              'id'  1214596
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Soul/Gaye, Marvin - Can I Get A Witness.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  167
                                           'genre'  funk or soul
                                        'filesize'  5367037
                                           'mtime'  1628357767
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Soul funk or soul
                                      'tag_artist'  Gaye, Marvin
                                     'tag_release'  Anthology
                                       'tag_title'  Can I Get A Witness
                                             'bpm'  84.07
                                    'search_title'  'a':4 'can':1 'get':3 'i':2 'witness':5
                                   'search_artist'  'gaye':1,2 'marvin':3
                                  'search_release'  'anthology':1
                                     'search_rest'  'country':4 'exotica':2 'funk':6 'jazz':1 'oldies':3 'or':7 'soul':5
                                    'search_combo'  'a':4A 'anthology':9C 'can':1A 'country':13 'exotica':11 'funk':15 'gaye':6B,7B 'get':3A 'i':2A 'jazz':10 'marvin':8B 'oldies':12 'or':16 'soul':14 'witness':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'motown', 'funk', 'rhythm and blues', '70s']
                                        'tag_date'  1963
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357767.3027623  (2021-08-07 19:36:07)
                             'size'  5367037