======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '559'
                                          'artist'  'Sting'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Desert Rose (Melodic club mix)'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['classic rock', 'singer songwriter', 'british', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-pop'
                                             'bpm'  '128.008'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '128.008'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-pop'
'TIT2' (Title/songname/content description)         'Desert Rose (Melodic club mix)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sting'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', 'singer songwriter', 'british', 'pop', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.77 dB'
'TXXX:replaygain_track_peak'                        '0.424043'

========================== row from database ==========================
                                              'id'  1319487
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sting/cifsbd34.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  559
                                           'genre'  ifs-songwriter-pop
                                        'filesize'  8967512
                                           'mtime'  1638562367
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic cifsbd34 ifs songwriter pop
                                      'tag_artist'  Sting
                                     'tag_release'  None
                                       'tag_title'  Desert Rose (Melodic club mix)
                                             'bpm'  128.008
                                    'search_title'  'club':5 'desert':1 'melodic':3,4 'mix':6,7 'rose':2
                                   'search_artist'  'sting':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'cifsbd34':2 'ifs':3 'pop':5 'songwriter':4
                                    'search_combo'  '00poprockelectronic':9 'cifsbd34':10 'club':5A 'desert':1A 'ifs':11 'melodic':3A,4A 'mix':6A,7A 'pop':13 'rose':2A 'songwriter':12 'sting':8B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'singer songwriter', 'british', 'pop', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638562367.4984505  (2021-12-03 21:12:47)
                             'size'  8967512