======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '368'
                                          'artist'  'Ness'
                                     'text_people'  ''
                                         'release'  'Field Records Collection'
                                           'title'  'Ravage As An Earth Panther'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'q-syn-4', 'q-bass-3', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', "
 "'q-other-1', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['podcast', 'science', 'skepticism', 'techno', 'skeptic']"
                                     'discogstags'  "['folk, world, & country', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '20'
                                            'date'  '2014'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '125.1'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Field Records Collection'
'TBPM' (BPM (beats per minute))                     '125.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2014'
'TENC' (Encoded by)                                 'Lame'
'TIT2' (Title/songname/content description)         'Ravage As An Earth Panther'
'TKEY' (Initial key)                                '11A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Ness'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '17/20'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'pop', 'rock']
'TXXX:lastfmtags'                                   ['podcast', 'science', 'skepticism', 'techno', 'skeptic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.98 dB'
'TXXX:replaygain_track_peak'                        '0.463942'

========================== row from database ==========================
                                              'id'  1385972
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Acronym - va_-_field_records_collection_(fcd01)-web-2014-tr/17-ness_-_ravage_as_an_earth_panther-tr.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  368
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  14759099
                                           'mtime'  1621085114
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats Acronym va_ _field_records_collection_(fcd01) web 2014 tr 17 ness_ _ravage_as_an_earth_panther tr electronic techno minimal deephouse
                                      'tag_artist'  Ness
                                     'tag_release'  Field Records Collection
                                       'tag_title'  Ravage As An Earth Panther
                                             'bpm'  125.1
                                    'search_title'  'an':3 'as':2 'earth':4 'panther':5 'ravage':1
                                   'search_artist'  'ness':1
                                  'search_release'  'collection':3 'field':1 'records':2
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 '2014':17 'acronym':6 'an':22 'as':21 'beats':5 'collection':10,14 'deephouse':28 'earth':23 'electronic':25 'fcd01':11,15 'field':8,12 'harder':4 'house':3 'minimal':27 'ness':19 'panther':24 'ravage':20 'records':9,13 'techno':26 'tr':18 'va':7 'web':16
                                    'search_combo'  '00poprockelectronic':10 '00techno':11 '2014':26 'acronym':15 'an':3A,31 'as':2A,30 'beats':14 'collection':9C,19,23 'deephouse':37 'earth':4A,32 'electronic':34 'fcd01':20,24 'field':7C,17,21 'harder':13 'house':12 'minimal':36 'ness':6B,28 'panther':5A,33 'ravage':1A,29 'records':8C,18,22 'techno':35 'tr':27 'va':16 'web':25
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', '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-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['podcast', 'science', 'skepticism', 'techno', 'skeptic']
                                        'tag_date'  2014
                                     'discogstags'  ['folk, world, & country', 'pop', 'rock']

============================== file details ==============================
                                           'mtime'  1621085114.49247  (2021-05-15 15:25:14)
                             'size'  14759099