======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '175'
                                          'artist'  'Frank Sinatra'
                                     'text_people'  ''
                                         'release'  'Frank Sinatra Sings Days of Wi'
                                           'title'  'Swinging on a Star'
                                           'quals'  ("['Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '128.332'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Frank Sinatra Sings Days of Wi'
'TBPM' (BPM (beats per minute))                     '128.332'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TIT2' (Title/songname/content description)         'Swinging on a Star'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Sinatra'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.07 dB'
'TXXX:replaygain_track_peak'                        '0.561780'

========================== row from database ==========================
                                              'id'  1340697
                                            'path'  /data/Music/Bulk/00poprockelectronic/Frank Sinatra/Frank Sinatra__cifs86df.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  175
                                           'genre'  prerock-unsorted
                                        'filesize'  2817487
                                           'mtime'  1620388046
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Sinatra__cifs86df prerock unsorted
                                      'tag_artist'  Frank Sinatra
                                     'tag_release'  Frank Sinatra Sings Days of Wi
                                       'tag_title'  Swinging on a Star
                                             'bpm'  128.332
                                    'search_title'  'a':3 'on':2 'star':4 'swinging':1
                                   'search_artist'  'frank':1 'sinatra':2
                                  'search_release'  'days':4 'frank':1 'of':5 'sinatra':2 'sings':3 'wi':6
                                     'search_rest'  '00poprockelectronic':1 'cifs86df':3 'prerock':4 'sinatra':2 'unsorted':5
                                    'search_combo'  '00poprockelectronic':13 'a':3A 'cifs86df':15 'days':10C 'frank':5B,7C 'of':11C 'on':2A 'prerock':16 'sinatra':6B,8C,14 'sings':9C 'star':4A 'swinging':1A 'unsorted':17 'wi':12C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['easy listening', 'jazz', 'vocal jazz', 'oldies', 'swing']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620388045.7860482  (2021-05-07 13:47:25)
                             'size'  2817487