======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '148'
                                          'artist'  'Harbinger Complex'
                                     'text_people'  ''
                                         'release'  'Nuggets (disc 4)'
                                           'title'  "I Think I'm Down"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['garage rock', 'psychedelic rock', 'rock', 'psychedelic', 'garage']"
                                     'discogstags'  "['garage rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '30'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '120.113'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'C4124A1E'
'COMM:ID3v1 Comment:XXX'                            'C4124A1E'
'TALB' (Album/Movie/Show title)                     'Nuggets (disc 4)'
'TBPM' (BPM (beats per minute))                     '120.113'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "I Think I'm Down"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Harbinger Complex'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10/30'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, 128 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['garage rock', 'rock']
'TXXX:lastfmtags'                                   ['garage rock', 'psychedelic rock', 'rock', 'psychedelic', 'garage']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.09 dB'
'TXXX:replaygain_track_peak'                        '0.351393'

========================== row from database ==========================
                                              'id'  1517189
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Sonics - Nuggets (sixties)/Nuggets (disc 4)/10 - Harbinger Complex - 10 - I Think I_m Down.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  148
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  2379811
                                           'mtime'  1620737012
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Sonics (sixties) 10 10 I_m rock cppex psychedelic
                                      'tag_artist'  Harbinger Complex
                                     'tag_release'  Nuggets (disc 4)
                                       'tag_title'  I Think I'm Down
                                             'bpm'  120.113
                                    'search_title'  'down':6 'i':1,3 'im':5 'm':4 'think':2
                                   'search_artist'  'complex':2 'harbinger':1
                                  'search_release'  '4':4,5 'disc':2,3 'nuggets':1
                                     'search_rest'  'classicprogpsy':1 'cppex':8 'i':5 'm':6 'psychedelic':9 'rock':7 'sixties':3,4 'sonics':2
                                    'search_combo'  '4':12C,13C 'classicprogpsy':14 'complex':8B 'cppex':21 'disc':10C,11C 'down':6A 'harbinger':7B 'i':1A,3A,18 'im':5A 'm':4A,19 'nuggets':9C 'psychedelic':22 'rock':20 'sixties':16,17 'sonics':15 'think':2A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'psychedelic rock', 'rock', 'psychedelic', 'garage']
                                        'tag_date'  1965
                                     'discogstags'  ['garage rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737012.1495714  (2021-05-11 14:43:32)
                             'size'  2379811