======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '243'
                                          'artist'  'Hardfloor'
                                     'text_people'  ''
                                         'release'  'Hardtrance Acperience EP (HH008)'
                                           'title'  'Acperience 4'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['acid house', 'acid trance', 'acid techno', 'techno', 'acid', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-acid'
                                             'bpm'  '146.000'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Hardtrance Acperience EP (HH008)'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-acid'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'Acperience 4'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hardfloor'
'TRCK' (Track number/Position in set)               '4'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['acid house', 'acid trance', 'acid techno', 'techno', 'acid', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.19 dB'
'TXXX:replaygain_track_peak'                        '0.603448'

========================== row from database ==========================
                                              'id'  1340467
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/hardfloor - hardtrance acperience ep/B2   Acperience 4.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  243
                                           'genre'  electronic-th-techno-acid
                                        'filesize'  6264818
                                           'mtime'  1620564475
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats hardfloor hardtrance acperience ep B2 electronic th techno acid
                                      'tag_artist'  Hardfloor
                                     'tag_release'  Hardtrance Acperience EP (HH008)
                                       'tag_title'  Acperience 4
                                             'bpm'  146.0
                                    'search_title'  '4':2 'acperience':1
                                   'search_artist'  'hardfloor':1
                                  'search_release'  'acperience':2 'ep':3 'hardtrance':1 'hh008':4,5
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'acid':14 'acperience':8 'b2':10 'beats':5 'electronic':11 'ep':9 'harder':4 'hardfloor':6 'hardtrance':7 'house':3 'techno':13 'th':12
                                    'search_combo'  '00poprockelectronic':9 '00techno':10 '4':2A 'acid':22 'acperience':1A,5C,16 'b2':18 'beats':13 'electronic':19 'ep':6C,17 'harder':12 'hardfloor':3B,14 'hardtrance':4C,15 'hh008':7C,8C 'house':11 'techno':21 'th':20
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['acid house', 'acid trance', 'acid techno', 'techno', 'acid', 'electronic']
                                        'tag_date'  1992
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620564475.2384953  (2021-05-09 14:47:55)
                             'size'  6264818