======================== unified (from filesystem) ========================
                                         'bitrate'  '136.078'
                                        'duration'  '322'
                                          'artist'  'Flat Pack'
                                     'text_people'  ''
                                         'release'  "Sweet Child O' Mine"
                                           'title'  'Sweet Child of Mine (Linus Loves mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['remix', 'dance', 'house', 'all', 'electro', 'electronic']"
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '120.042'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Sweet Child O' Mine"
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Sweet Child of Mine (Linus Loves mix)'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Flat Pack'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   ['remix', 'dance', 'house', 'all', 'electro', 'electronic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.71 dB'
'TXXX:replaygain_track_peak'                        '0.604048'

========================== row from database ==========================
                                              'id'  1293901
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/flat pack - sweet child of mine (linus loves mix).mp3
                                         'working'  None
                                         'bitrate'  136
                                    'duration_sec'  322
                                           'genre'  electronic-unsorted
                                        'filesize'  5480592
                                           'mtime'  1621696807
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] flat pack sweet child mine (linus loves electronic unsorted
                                      'tag_artist'  Flat Pack
                                     'tag_release'  Sweet Child O' Mine
                                       'tag_title'  Sweet Child of Mine (Linus Loves mix)
                                             'bpm'  120.042
                                    'search_title'  'child':2 'linus':5,6 'loves':7 'mine':4 'mix':8,9 'of':3 'sweet':1
                                   'search_artist'  'flat':1 'pack':2
                                  'search_release'  'child':2 'mine':5 'o':3,4 'sweet':1
                                     'search_rest'  '00poprockelectronic':1 'child':10 'electronic':15 'files':5,6 'flat':7 'linus':12,13 'loose':3,4 'loves':14 'mine':11 'pack':8 'sweet':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':17 'child':2A,13C,26 'electronic':31 'files':21,22 'flat':10B,23 'linus':5A,6A,28,29 'loose':19,20 'loves':7A,30 'mine':4A,16C,27 'mix':8A,9A 'o':14C,15C 'of':3A 'pack':11B,24 'sweet':1A,12C,25 'unsorted':18
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8B
                                           '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-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['remix', 'dance', 'house', 'all', 'electro', 'electronic']
                                        'tag_date'  2004
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1621696807.4555337  (2021-05-22 17:20:07)
                             'size'  5480592