======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '364'
                                          'artist'  'E-Z Rollers'
                                     'text_people'  ''
                                         'release'  'Moving Shadow (SHADOW146R)'
                                           'title'  'RS2000 (Full Length Vocal Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['drum and bass', 'electronic', 'jungle', 'drum n bass', 'dnb']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '86.882'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Moving Shadow (SHADOW146R)'
'TBPM' (BPM (beats per minute))                     '86.882'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-th-breakbeat or dnb or jungle',
 'electronic-th-breakbeat or dnb or jungle']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'RS2000 (Full Length Vocal Mix)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'E-Z Rollers'
'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'                                   ['drum and bass', 'electronic', 'jungle', 'drum n bass', 'dnb']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.433509'

========================== row from database ==========================
                                              'id'  1306003
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/E-Z Rollers/EZ Rollers - RS 2000 (vocal_mix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  364
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  8768549
                                           'mtime'  1621696509
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb EZ (vocal_mix) electronic breakbeat or dnb or jungle
                                      'tag_artist'  E-Z Rollers
                                     'tag_release'  Moving Shadow (SHADOW146R)
                                       'tag_title'  RS2000 (Full Length Vocal Mix)
                                             'bpm'  86.882
                                    'search_title'  'full':2,3 'length':4 'mix':6,7 'rs2000':1 'vocal':5
                                   'search_artist'  'e':1 'ez':3 'rollers':4 'z':2
                                  'search_release'  'moving':1 'shadow':2 'shadow146r':3,4
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'breakbeat':9 'dnb':11 'electronic':8 'ez':3 'jungle':12 'mix':5,7 'or':10 'vocal':4,6
                                    'search_combo'  '00dnb':17 '00poprockelectronic':16 'breakbeat':24 'dnb':26 'e':8B 'electronic':23 'ez':10B,18 'full':2A,3A 'jungle':27 'length':4A 'mix':6A,7A,20,22 'moving':12C 'or':25 'rollers':11B 'rs2000':1A 'shadow':13C 'shadow146r':14C,15C 'vocal':5A,19,21 'z':9B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['drum and bass', 'electronic', 'jungle', 'drum n bass', 'dnb']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696508.703061  (2021-05-22 17:15:08)
                             'size'  8768549