======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '281'
                                          'artist'  'Paul McCartney & Wings'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Uncle Albert Admiral Halsey ('
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['pop', 'rock', 'british', '70s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '144.645'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.645'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Uncle Albert Admiral Halsey ('
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul McCartney & Wings'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', 'rock', 'british', '70s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.575197'

========================== row from database ==========================
                                              'id'  1350904
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Paul McCartney & Wings - Uncle Albert Admiral Halsey (1971 #1).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  281
                                           'genre'  ifs-songwriter
                                        'filesize'  4513792
                                           'mtime'  1637330772
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] (1971 #1) ifs songwriter
                                      'tag_artist'  Paul McCartney & Wings
                                     'tag_release'  None
                                       'tag_title'  Uncle Albert Admiral Halsey (
                                             'bpm'  144.645
                                    'search_title'  'admiral':3 'albert':2 'halsey':4 'uncle':1
                                   'search_artist'  'cartney':5 'mc':4 'mccartney':2 'paul':1 'wings':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1':9,10 '1971':7,8 'files':5,6 'ifs':11 'loose':3,4 'songwriter':12 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 '1':18,19 '1971':16,17 'admiral':3A 'albert':2A 'cartney':9B 'files':14,15 'halsey':4A 'ifs':20 'loose':12,13 'mc':8B 'mccartney':6B 'paul':5B 'songwriter':21 'uncle':1A 'unsorted':11 'wings':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', 'british', '70s', 'classic rock']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330771.5462477  (2021-11-19 15:06:11)
                             'size'  4513792