======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '492'
                                          'artist'  'Infected Mushroom'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Dirty 80's"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-4', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance-goa or psy'
                                             'bpm'  '145.163'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance-goa or psy'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         "Dirty 80's"
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Infected Mushroom'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.88 dB'
'TXXX:replaygain_track_peak'                        '0.547916'

========================== row from database ==========================
                                              'id'  1519551
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Infected Mushroom/Infected Mushroom - Dirty 80_s.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  492
                                           'genre'  electronic-th-trance-goa or psy
                                        'filesize'  7876608
                                           'mtime'  1620558793
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 80_s electronic th trance goa or psy
                                      'tag_artist'  Infected Mushroom
                                     'tag_release'  None
                                       'tag_title'  Dirty 80's
                                             'bpm'  145.163
                                    'search_title'  '80':2 '80s':4 'dirty':1 's':3
                                   'search_artist'  'infected':1 'mushroom':2
                                  'search_release'  
                                     'search_rest'  '80':1 'electronic':3 'goa':6 'or':7 'psy':8 's':2 'th':4 'trance':5
                                    'search_combo'  '80':2A,7 '80s':4A 'dirty':1A 'electronic':9 'goa':12 'infected':5B 'mushroom':6B 'or':13 'psy':14 's':3A,8 'th':10 'trance':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-4', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620558792.880941  (2021-05-09 13:13:12)
                             'size'  7876608