======================== unified (from filesystem) ========================
                                         'bitrate'  '238.406'
                                        'duration'  '199'
                                          'artist'  'Gabriel & Dresden'
                                     'text_people'  ''
                                         'release'  'Promo Only: Dance Radio, December 2006'
                                           'title'  'Dangerous Power (Cicada radio edit)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  ("['dance', 'trance', 'progressive trance', 'house', 'progressive house', "
 "'electronic']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '135.004'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Promo Only: Dance Radio, December 2006'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TIT2' (Title/songname/content description)         'Dangerous Power (Cicada radio edit)'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gabriel & Dresden'
'TRCK' (Track number/Position in set)               '7'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance',
 'trance',
 'progressive trance',
 'house',
 'progressive house',
 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+8.65 dB'
'TXXX:replaygain_track_peak'                        '0.121893'

========================== row from database ==========================
                                              'id'  1315976
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Gabriel !26 Dresden Ft Jan Burton - Dangerous Power (Cicada Radio Edit).mp3
                                         'working'  None
                                         'bitrate'  238
                                    'duration_sec'  199
                                           'genre'  electronic-th-trance
                                        'filesize'  5949284
                                           'mtime'  1621696764
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] !26 Ft Jan Burton Edit) electronic th trance
                                      'tag_artist'  Gabriel & Dresden
                                     'tag_release'  Promo Only: Dance Radio, December 2006
                                       'tag_title'  Dangerous Power (Cicada radio edit)
                                             'bpm'  135.004
                                    'search_title'  'cicada':3,4 'dangerous':1 'edit':6,7 'power':2 'radio':5
                                   'search_artist'  'dresden':2 'gabriel':1
                                  'search_release'  '2006':8 'dance':4 'december':7 'only':2,3 'promo':1 'radio':5,6
                                     'search_rest'  '00poprockelectronic':1 '26':7 'burton':10 'edit':11,12 'electronic':13 'files':5,6 'ft':8 'jan':9 'loose':3,4 'th':14 'trance':15 'unsorted':2
                                    'search_combo'  '00poprockelectronic':18 '2006':17C '26':24 'burton':27 'cicada':3A,4A 'dance':13C 'dangerous':1A 'december':16C 'dresden':9B 'edit':6A,7A,28,29 'electronic':30 'files':22,23 'ft':25 'gabriel':8B 'jan':26 'loose':20,21 'only':11C,12C 'power':2A 'promo':10C 'radio':5A,14C,15C 'th':31 'trance':32 'unsorted':19
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trance', 'progressive trance', 'house', 'progressive house', 'electronic']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696764.0434794  (2021-05-22 17:19:24)
                             'size'  5949284