======================== unified (from filesystem) ========================
                                         'bitrate'  '127.983'
                                        'duration'  '194'
                                          'artist'  'Catch 22'
                                     'text_people'  ''
                                         'release'  'Keasbey Nights'
                                           'title'  'On & On & On'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-UNU-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['ska punk', 'punk rock', 'ska', 'punk']"
                                     'discogstags'  "['hip-house', 'bass music', 'electro', 'electronic', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-unsorted'
                                             'bpm'  '139.754'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Keasbey Nights'
'TBPM' (BPM (beats per minute))                     '139.754'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-unsorted'
'TIT2' (Title/songname/content description)         'On & On & On'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Catch 22'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['hip-house', 'bass music', 'electro', 'electronic', 'hip hop']
'TXXX:lastfmtags'                                   ['ska punk', 'punk rock', 'ska', 'punk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.42 dB'
'TXXX:replaygain_track_peak'                        '0.481100'

========================== row from database ==========================
                                              'id'  1339388
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Catch 22-Keasbey Nights-07-On !26 On !26 On.mp3
                                         'working'  None
                                         'bitrate'  127
                                    'duration_sec'  194
                                           'genre'  loc-style-reggae or dub or ska or dancehall-unsorted
                                        'filesize'  3107741
                                           'mtime'  1620524967
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 07 !26 !26 loc style reggae or dub or ska or dancehall unsorted
                                      'tag_artist'  Catch 22
                                     'tag_release'  Keasbey Nights
                                       'tag_title'  On & On & On
                                             'bpm'  139.754
                                    'search_title'  'on':1
                                   'search_artist'  '22':2 'catch':1
                                  'search_release'  'keasbey':1 'nights':2
                                     'search_rest'  '00poprockelectronic':1 '26':7 'dancehall':14 'dub':12 'files':5,6 'loc':8 'loose':3,4 'or':11 'reggae':10 'ska':13 'style':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':6 '22':3B '26':12 'catch':2B 'dancehall':19 'dub':17 'files':10,11 'keasbey':4C 'loc':13 'loose':8,9 'nights':5C 'on':1A 'or':16 'reggae':15 'ska':18 'style':14 'unsorted':7
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['ska punk', 'punk rock', 'ska', 'punk']
                                        'tag_date'  
                                     'discogstags'  ['hip-house', 'bass music', 'electro', 'electronic', 'hip hop']

============================== file details ==============================
                                           'mtime'  1620524967.4150949  (2021-05-09 03:49:27)
                             'size'  3107741