======================== unified (from filesystem) ========================
                                         'bitrate'  '214.772'
                                        'duration'  '237'
                                          'artist'  'Primus'
                                     'text_people'  ''
                                         'release'  'Frizzle Fry'
                                           'title'  'Too Many Puppies'
                                           'quals'  ("['Q-HAP-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'funk metal', 'alternative', 'funk', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'eid-unsorted'
                                             'bpm'  '146.000'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Frizzle Fry'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'eid-unsorted'
'TDOR' (Original release time)                      '1990'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Too Many Puppies'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Primus'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', 'funk metal', 'alternative', 'funk', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+4.90 dB'
'TXXX:replaygain_track_peak'                        '0.305878'

========================== row from database ==========================
                                              'id'  1282529
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/03. Too Many Puppies.mp3
                                         'working'  None
                                         'bitrate'  214
                                    'duration_sec'  237
                                           'genre'  eid-unsorted
                                        'filesize'  6388962
                                           'mtime'  1620521351
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 03. eid unsorted
                                      'tag_artist'  Primus
                                     'tag_release'  Frizzle Fry
                                       'tag_title'  Too Many Puppies
                                             'bpm'  146.0
                                    'search_title'  'many':2 'puppies':3 'too':1
                                   'search_artist'  'primus':1
                                  'search_release'  'frizzle':1 'fry':2
                                     'search_rest'  '00poprockelectronic':1 '03':7,8 'eid':9 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 '03':13,14 'eid':15 'files':11,12 'frizzle':5C 'fry':6C 'loose':9,10 'many':2A 'primus':4B 'puppies':3A 'too':1A 'unsorted':8
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'funk metal', 'alternative', 'funk', 'rock']
                                        'tag_date'  1990
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620521350.510704  (2021-05-09 02:49:10)
                             'size'  6388962