======================== unified (from filesystem) ========================
                                         'bitrate'  '148.432'
                                        'duration'  '268'
                                          'artist'  'Chaos Face'
                                     'text_people'  ''
                                         'release'  'Doom Ride'
                                           'title'  'Body Hammer'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['industrial', 'bill laswell', 'buckethead', 'techno', 'shin terai']"
                                     'discogstags'  "['hardcore', 'techno', 'electronic', 'abstract']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '5'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '146.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'ExactAudioCopy v0.99pb4'
'TALB' (Album/Movie/Show title)                     'Doom Ride'
'TBPM' (BPM (beats per minute))                     '146.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Body Hammer'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chaos Face'
'TRCK' (Track number/Position in set)               '4/5'
'TXXX:DISCID'                                       '280A6205'
'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'                                  ['hardcore', 'techno', 'electronic', 'abstract']
'TXXX:lastfmtags'                                   ['industrial', 'bill laswell', 'buckethead', 'techno', 'shin terai']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.61 dB'
'TXXX:replaygain_track_peak'                        '0.630776'

========================== row from database ==========================
                                              'id'  1362943
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Chaos Face - Doom Ride/04-Body Hammer.mp3
                                         'working'  None
                                         'bitrate'  148
                                    'duration_sec'  268
                                           'genre'  electronic-th-techno
                                        'filesize'  4984652
                                           'mtime'  1620563617
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats 04 electronic th techno
                                      'tag_artist'  Chaos Face
                                     'tag_release'  Doom Ride
                                       'tag_title'  Body Hammer
                                             'bpm'  146.0
                                    'search_title'  'body':1 'hammer':2
                                   'search_artist'  'chaos':1 'face':2
                                  'search_release'  'doom':1 'ride':2
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 'beats':5 'electronic':6 'harder':4 'house':3 'techno':8 'th':7
                                    'search_combo'  '00poprockelectronic':7 '00techno':8 'beats':11 'body':1A 'chaos':3B 'doom':5C 'electronic':12 'face':4B 'hammer':2A 'harder':10 'house':9 'ride':6C 'techno':14 'th':13
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'q-other-1', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'bill laswell', 'buckethead', 'techno', 'shin terai']
                                        'tag_date'  1994
                                     'discogstags'  ['hardcore', 'techno', 'electronic', 'abstract']

============================== file details ==============================
                                           'mtime'  1620563616.692237  (2021-05-09 14:33:36)
                             'size'  4984652