======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '300'
                                          'artist'  'Krypteria'
                                     'text_people'  ''
                                         'release'  "Bloodangel's Cry"
                                           'title'  'Somebody Save Me'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['power metal', 'female fronted metal', 'symphonic metal', 'female "
 "vocalists', 'gothic metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic;eid-metal-symphonic'
                                             'bpm'  '120.042'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Bloodangel's Cry"
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-doom or gothic', 'eid-metal-symphonic']
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Somebody Save Me'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Krypteria'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['power metal',
 'female fronted metal',
 'symphonic metal',
 'female vocalists',
 'gothic metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.40 dB'
'TXXX:replaygain_track_peak'                        '0.377876'

========================== row from database ==========================
                                              'id'  1507060
                                            'path'  /data/Music/Bulk/00dwimp/Krypteria/Krypteria - Bloodangel_s Cry - 04 - Somebody Save Me.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  300
                                           'genre'  eid-metal-doom or gothic;eid-metal-symphonic
                                        'filesize'  7209835
                                           'mtime'  1620310321
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp Bloodangel_s 04 eid metal doom or gothic;eid metal symphonic
                                      'tag_artist'  Krypteria
                                     'tag_release'  Bloodangel's Cry
                                       'tag_title'  Somebody Save Me
                                             'bpm'  120.042
                                    'search_title'  'me':3 'save':2 'somebody':1
                                   'search_artist'  'krypteria':1
                                  'search_release'  'bloodangel':1 'bloodangels':3 'cry':4 's':2
                                     'search_rest'  '00dwimp':1 'bloodangel':2 'doom':6 'eid':4,9,11 'gothic':8,10 'metal':5 'or':7 's':3 'symphonic':12
                                    'search_combo'  '00dwimp':9 'bloodangel':5C,10 'bloodangels':7C 'cry':8C 'doom':14 'eid':12,17,19 'gothic':16,18 'krypteria':4B 'me':3A 'metal':13 'or':15 's':6C,11 'save':2A 'somebody':1A 'symphonic':20
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['power metal', 'female fronted metal', 'symphonic metal', 'female vocalists', 'gothic metal']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310321.3696227  (2021-05-06 16:12:01)
                             'size'  7209835