======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '694'
                                          'artist'  'Vim!'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'time-for-the-squares'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'k1mo likes', 'idm', 'chiptune', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-we-beeps or chip or pico'
                                             'bpm'  '138.4'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '138.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-beeps or chip or pico'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'time-for-the-squares'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Vim!'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '073,181'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'TXXX:Q-HAP'                                        '3'
'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'                                   ['electronic', 'k1mo likes', 'idm', 'chiptune', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.13 dB'
'TXXX:replaygain_track_peak'                        '0.408383'

========================== row from database ==========================
                                              'id'  128833
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/monotonik/monotonik-archives-vol-1/[mtk085]-vim-time-for-the-squares.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  694
                                           'genre'  electronic-we-beeps or chip or pico
                                        'filesize'  13887051
                                           'mtime'  1621705471
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm monotonik monotonik archives vol 1 [mtk085] vim electronic we beeps chip pico
                                      'tag_artist'  Vim!
                                     'tag_release'  None
                                       'tag_title'  time-for-the-squares
                                             'bpm'  138.4
                                    'search_title'  'for':2 'squares':4 'the':3 'time':1 'timeforthesquares':5
                                   'search_artist'  'vim':1
                                  'search_release'  
                                     'search_rest'  '1':4 'archives':2 'beeps':10 'chip':11 'electronic':8 'monotonik':1 'mtk085':5,6 'pico':12 'vim':7 'vol':3 'we':9
                                    'search_combo'  '1':10 'archives':8 'beeps':16 'chip':17 'electronic':14 'for':2A 'monotonik':7 'mtk085':11,12 'pico':18 'squares':4A 'the':3A 'time':1A 'timeforthesquares':5A 'vim':6B,13 'vol':9 'we':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'k1mo likes', 'idm', 'chiptune', 'ambient']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621705470.7732403  (2021-05-22 19:44:30)
                             'size'  13887051